WO2018171645A1

WO2018171645A1 - Physical uplink control channel configuration method, base station and user equipment

Info

Publication number: WO2018171645A1
Application number: PCT/CN2018/079905
Authority: WO
Inventors: 苟伟; 毕峰; 郝鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-03-24
Filing date: 2018-03-21
Publication date: 2018-09-27
Also published as: CN108632191A; CN108632191B

Abstract

Disclosed are a physical uplink control channel configuration method, a base station and a user equipment. The method comprises: a base station configures for a user equipment or binds in advance with the user equipment a parameter of a physical uplink control channel, the parameter comprising the time domain size and number of repeating units, and the repeating unit being configured for the user equipment to send the physical uplink control channel; and if the base station configures the parameter of the physical uplink control channel, the base station sends the parameter to the user equipment.

Description

Physical uplink control channel configuration method, base station, and user equipment

Cross-reference to related applications

The present application is filed on the basis of the Chinese Patent Application No. PCT Application No. PCT Application No. .

Technical field

The present invention relates to the field of wireless communications technologies, and in particular, to a physical uplink control channel configuration method, a base station, and a user equipment.

Background technique

5G NR (New Radio) is an ongoing 3GPP (3rd Generation Partnership) research project that identifies new wireless air interface standards based on Orthogonal Frequency Division Multiplexing (OFDM) and will be the foundation for next-generation mobile networks. . The 5G application scenarios defined by 3GPP include: Enhanced Mobile BroadBand (eMBB), Ultra-Reliable and Low Latency Communications (URLLC), and Massive Machine Type Communications (mMTC). The three application scenarios have different requirements for delay, coverage, and reliability: eMBB emphasizes high peak transmission rate, low latency requirements, and medium reliability requirements; URLLC emphasizes low latency and High reliability transmission; mMTC emphasizes a large number of terminals, which has a high connection density and requires a larger transmission coverage, and has almost no requirement for delay.

Currently in the NR system, the definition of a slot slot (which may also be referred to as a scheduling unit) is summarized as follows: The slot includes at least one of a downlink portion, a guard interval (GAP), and an uplink portion. The downlink part includes downlink control information (including downlink authorization information and/or uplink grant information) and downlink data, and the uplink part includes uplink data and a long/short uplink control area. The structure of a typical downlink slot includes: 1 downlink control information, downlink data, GAP, short uplink control region; 2 downlink data, GAP, short uplink control region; 3 downlink control information, downlink data; 4 downlink data. The structure of a typical uplink slot includes: 1 downlink control information, GAP, uplink data, short uplink control region; 2 uplink data, short uplink control region; 3 downlink control, GAP, uplink data; 4 uplink data.

In the NR system, the uplink control channel is divided into a short uplink control channel (short PUCCH) and a long uplink control channel (long PUCCH). The short uplink control channel is used for user equipment (User Equipment, UE) in the vicinity of the cell center to send timely Acknowledgement/Negative Acknowledgement (ACK/NACK) feedback or other Channel State Information (CSI). Typically there are several OFDM symbols at the end of the slot (eg 1 or 2 OFDM symbols at the end of the downstream slot; or 1 or 2 OFDM symbols at the end of the upstream slot); or a few symbols placed before the upstream data in the slot. The long uplink control channel is used for the UE at the cell edge, which occupies more OFDM symbols to enhance the transmission coverage of the long uplink control channel.

At present, in the standard discussion of NR, the long uplink control channel does not give a specific design, only some simple conclusions, such as the long uplink control channel supports a load range of 1 bit to several hundred bits, and the long uplink control channel can span Slot. How to design a long uplink control channel has not yet proposed an effective solution.

Summary of the invention

The embodiments of the present invention provide a physical uplink control channel configuration method, a base station, and a user equipment, which can meet the requirement that the NR medium long uplink control channel needs to be cross-slot and a large range of load changes.

The technical solution of the embodiment of the present invention is implemented as follows:

The embodiment of the invention provides a physical uplink control channel configuration method, including:

The base station is configured for the user equipment, or pre-arranges the parameters of the physical uplink control channel with the user equipment, where the parameter includes the time domain size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel to the user equipment;

If the base station configures a parameter of the physical uplink control channel, the base station sends the parameter to the user equipment.

The embodiment of the invention further provides a physical uplink control channel configuration method, including:

The user equipment receives the parameter of the physical uplink control channel sent by the base station, or the parameter of the physical uplink control channel is previously agreed by the base station and the user equipment, and the user equipment determines the physical uplink control channel according to the parameter;

The parameter includes a time domain size and a number of the repeating unit, and the repeating unit is used by the user equipment to send a physical uplink control channel.

An embodiment of the present invention further provides a base station, including a first configuration unit and a first transceiver unit, where

The first configuration unit is configured to configure the user equipment, or pre-arrange the parameters of the physical uplink control channel with the user equipment, where the parameter includes the size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel to the user equipment. ;

The first transceiver unit is configured to send the parameter configured by the first configuration unit to the user equipment.

An embodiment of the present invention further provides a user equipment, including a second transceiver unit and a second determining unit, where

The second transceiver unit is configured to receive a parameter of a physical uplink control channel sent by the base station, where the parameter includes a size and a number of the repeating unit, where the repeating unit is configured to send the physical uplink control channel by the user equipment;

The second determining unit is configured to configure the physical uplink control channel according to the parameter received by the second transceiver unit or according to the parameters agreed by the user equipment and the base station in advance.

An embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores a computer program executable on a processor, and the processor implements the physical uplink control channel configuration when the program is executed by the processor. The steps in the method.

An embodiment of the present invention further provides a user equipment, including a memory and a processor, where the memory stores a computer program executable on a processor, and the processor implements the physical uplink control channel when the program is executed by the processor. The steps in the configuration method.

The embodiment of the present invention further provides a computer readable storage medium, where the computer program is stored, and when the computer program is executed by the processor, the steps in the physical uplink control channel configuration method on the base station side or the user equipment side are implemented.

The embodiment of the invention further provides a physical uplink control channel configuration method, which includes:

For the uplink control information carrying the 1-2 bits, the base station and the UE agree on the physical uplink control channel structure: the first symbol of the physical uplink control channel is the decoded reference signal RS, and the second symbol is the uplink control information, and the subsequent symbols are The first symbol and the second symbol are sequentially repeated until the total number of symbols satisfies the required number of symbols.

The technical solution of the embodiment of the invention has the following beneficial effects:

The physical uplink control channel configuration method, the base station, and the user equipment provided by the embodiments of the present invention flexibly and conveniently extend the uplink control channel in the time domain direction through the repeating unit, and satisfy the requirement that the NR medium and long uplink control channel needs to be across slots and a large range. The need for load changes.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic flowchart of a first physical uplink control channel configuration method according to an embodiment of the present invention;

2 is a schematic flowchart of a second physical uplink control channel configuration method according to an embodiment of the present invention;

3 is a schematic structural diagram of a base station according to an embodiment of the present invention;

4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

Figure 5 is a schematic diagram of a mapping pattern of a repeating unit composed of two symbols in the above-mentioned behavior main slot structure;

6 is a schematic diagram of a mapping pattern of a repeating unit composed of two symbols in a pure uplink-based slot structure;

FIG. 7 is a schematic diagram of a hardware entity of a computing device according to an embodiment of the present invention.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Herein, a slot is a scheduling unit, which may be called a time slot or a scheduling unit, and includes a plurality of consecutive OFDM symbols, which may be a pure uplink or downlink scheduling unit, or may be a scheduling unit of uplink and downlink mixing. The slot in this article can be a regular slot. For example, at present, the NR specifies that in the frequency band not exceeding 6 GHz, the number of symbols in the slot is 7 or 14 OFDM symbols, and in the frequency band exceeding 6 GHz, the symbol data of the slot is at least 14 The other values are to be determined; the slot in this article can also be a mini-slot (also called a mini-slot). For example, in NR, the currently defined mini-slot contains symbol data (1 to slot). The total number of symbols -1), obviously, the number of symbols in the mini-slot varies widely.

The following embodiments may be used independently, and the technical features in different embodiments may be combined and used in one embodiment. The PUSCH resources in this document generally refer to PRB resources, and the PUCCH resources may be PRBs, OFDM symbols, subcarriers, and the like. Or any combination of the foregoing; the PUCCH resource not specifically described herein may be a short PUCCH resource and/or a long PUCCH resource; the PUSCH and the PUCCH in this context respectively correspond to a physical uplink data channel (also referred to as a transmission characteristic, such as uplink data or Uplink data area), physical uplink control channel (also referred to as transmission characteristics, such as uplink control area or uplink control); in the standardization of NR, PUSCH and PUCCH may also be abbreviated as NR-PUSCH and NR-PUCCH. Abbreviations, but the intention is still the physical uplink data channel and the physical uplink control channel, and the bearer content is unchanged, so the title is not used to limit the scope of the present invention.

It should be specially noted that the long uplink control channel in this paper is only the name of an uplink control channel. The technical solution provided in this paper is essentially a physical uplink control channel configuration scheme, suitable for any physical uplink control channel, especially in the long The advantage in the uplink control channel is even greater. Therefore, those skilled in the art will readily appreciate that if the terminology of the long uplink control channel is changed, the technical solution provided by the present invention is still suitable for the configuration of a physical uplink control channel, and the term is not used to limit the scope of the present invention.

It should be noted that the “same long uplink control channel” in the present invention refers to “a long uplink control channel”, that is, “a long uplink control channel of the UE”, and “the same physical uplink control channel” "It is a physical uplink control channel," that is, "a physical uplink control channel of the UE." In the text, the "uplink control channel" is also the "physical uplink control channel."

As shown in FIG. 1, a physical uplink control channel configuration method according to the present invention includes:

Step S101: The base station configures the user equipment, or pre-arranges the parameters of the physical uplink control channel with the user equipment, where the parameter includes the time domain size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel to the user equipment.

Step S102: If the base station configures a parameter of the physical uplink control channel, the base station sends the parameter to the user equipment.

Wherein, the repeating unit may also be named as a base unit or a repeating base unit.

In other embodiments, the size of the repeating unit includes n orthogonal frequency division multiplexing (OFDM) symbols, where n is a natural number.

In other embodiments, the time domain size includes one of the following: 1 symbol, 2 symbols, 4 symbols, 5 symbols, 7 symbols, 10 symbols, 11 symbols.

In an embodiment, if the size of the repeating unit is 1 OFDM symbol, one physical uplink control channel includes at least 4 repeating units; if the size of the repeating unit is 2 OFDM symbols, one physical uplink control channel includes at least two Repeat unit.

In other embodiments, the number of symbols in the time domain of the repeating unit is at most the sum of the number of symbols available in the time slot for the physical uplink control channel.

It should be noted that the uplink control channel in the present invention refers to a long uplink control channel, where the UE used for the cell edge of the long uplink control channel occupies more OFDM symbols, and therefore, the mapping between the repeating units of the present invention. The time domain priority is followed, that is, the first repeating unit is mapped first in the time domain direction, and the second repeating unit is mapped; since the long PUCCH is to improve the coverage performance of the UE at the cell edge, the present invention preferentially considers the repeating unit in the time domain direction. repeat.

In other embodiments, the parameter further includes a parameter of the repeating unit in the frequency domain direction, wherein the parameter of the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, including one of the following:

The position of the subband where the repeating unit is located;

The subband position where the repeating unit is located, and the physical resource block (PRB) corresponding to the size within the subband;

The physical resource block of the repeating unit.

In an embodiment of the present invention, if all symbols of one physical uplink control channel use the same subcarrier spacing, each of the repeating units of one physical uplink control channel has the same frequency domain size;

If all symbols of a physical uplink control channel have symbols using different subcarrier spacings, the number of frequency domain subcarriers or physical resource blocks is the same for each of the repeating units of one physical uplink control channel.

It should be noted that when the size of the repeating unit of the present invention is described in terms of the number of OFDM symbols, the OFDM symbol included in the one repeating unit may be located in one slot or in a mini-slot. The operation method in the mini-slot is the same as the operation method in the slot; the size of the repetition unit of the present invention may be described in terms of the number of OFDM symbols, or the number of slots or the mini-slots of the specified symbol. The number is described.

In other embodiments, each of the repeating units of a physical uplink control channel can be independently decoded, and information transmitted in a physical uplink control channel can be obtained by decoding, that is, each repeating unit can obtain the current physics by decoding. The information transmitted in the uplink control channel, or the original information contained in each repeating unit, is the same.

In other embodiments, when the number of symbols reserved for the long uplink control channel in one slot cannot be equally divided, there may be cases where the number of OFDM symbols between the repeating units is not equal. The base station should avoid this situation as much as possible, for example by adjusting the size of the repeating unit, the code rate, and the like.

In an embodiment of the invention, for the same long uplink control channel, the base station allows repeating units of different sizes to be aggregated in one time slot.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in one slot are divided according to a repeating unit, repeating units of different sizes appear, wherein a smaller repeating unit is located at the end of the slot, or After a large repeating unit, or before a larger repeating unit.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in one slot are divided according to repeating units, repeating units of different sizes appear, wherein a larger repeating unit is located at the end of the slot, or is larger. The repeating unit is after a smaller repeating unit or before a smaller repeating unit.

In other embodiments, less than one repeating unit symbol constitutes a smaller repeating unit, or less than one repeating unit symbol is aggregated with an adjacent repeating unit into a larger repeating unit.

In an embodiment of the invention, the smaller repeating unit is rate matched with other repeating units in a punctured manner; the symbol of the larger repeating unit exceeding the repeating unit size is repeated in front of the larger repeating unit. The way the symbol is.

When transmitting the physical uplink control channel, the base station first determines the total number of OFDM symbols required by the user equipment in the time domain, and then determines the time domain size of the repeating unit, encodes the information to be transmitted according to the given code rate k, and determines the number of PRBs of the frequency domain resource. Determine the repetition number m of the repeating unit, and the final PUCCH transmission code rate is k/m, and m can take 1, that is, only one repeating unit is transmitted, and there is no repetition.

In an embodiment of the invention, when the same long uplink control channel spans a time slot, one repeating unit cannot cross the time slot. This is because if the repeating unit is spanned over two time slots, the discontinuity of the two parts of the repeating unit on the two time slots may result in the repeating unit being unable to self-decode.

In an embodiment of the present invention, for each repeating unit of the same long uplink control channel, the transmitted data may be the same or different redundancy versions encoded by the same original data. It should be noted that even if the data sent by the two repeating units is a different redundancy version, the receiving end can still decode the same original data from different redundancy versions.

In an embodiment of the invention, the base station sends the parameter to the user equipment by using physical layer signaling and/or high layer signaling.

In an embodiment, the physical layer signaling includes: transmitting and obtaining by using UE-specific or UE group-specific downlink control information by common downlink control information transmission and acquisition;

The high layer signaling includes: transmitting and obtaining information through the broadcast system, and transmitting or obtaining through the UE or UE group dedicated RRC message;

Physical layer signaling and high layer signaling include: configuring, by higher layer signaling, a possible set of values of the parameter (the size or number of repeating units), the physical layer signaling indicating the parameter from the set of values The specific value. The transmission mode can be adapted to high-level signaling overhead, large delay, large physical layer signaling overhead, and low delay.

In other embodiments, if the number of repeating units in the parameter is previously agreed, the parameter is a time domain size of the repeating unit; if the time domain size of the repeating unit in the parameter is previously agreed, The parameter is the number of repeating units.

In other embodiments, each repeating unit of a physical uplink control channel has the same size in the time domain direction.

In an embodiment of the present invention, when a physical uplink control channel hops in a slot or across a slot, frequency hopping is performed according to the granularity of the repeating unit (for example, frequency hopping between single and double numbered repeating units), or Perform frequency hopping according to the repeated units of the aggregation (for example, separately synthesizing the first few repeating units and the remaining repeating units, and performing frequency hopping between the repeated units after the aggregation);

Alternatively, when the physical uplink control channel hops in a time slot or across time slots, when the number of repeating units in the one time slot is one, frequency hopping is performed in the repeating unit.

In other embodiments, for one physical uplink control channel, in a time slot, the repeating unit maps or determines the number of symbols from the two ends of the time slot of the time slot (while the granularity according to the repeating unit) Frequency hopping, or frequency hopping according to the repeated units of the aggregation), or starting from the symbol allowed at the end of the time domain of the time slot to map or determine the number of symbols (while hopping according to the repetition unit, or according to the aggregation The repeating unit performs frequency hopping) or maps or determines the number of symbols from the allowed symbols in front of the time domain of the time slot (while hopping according to the repetition unit, or hopping according to the repeated unit of aggregation), wherein The allowed symbols are configured by the base station or pre-agreed as the starting symbol of the repeating unit in the time slot.

In other embodiments, for one of the physical uplink control channels, when all symbols allowed to be used by the physical uplink control channel are not occupied by all the repetitive units in the slot, the repeating unit is from the time slot. Both ends of the domain start to map to the middle or determine the number of symbols (while hopping according to the repetition unit, or hopping according to the repeated units of the aggregation), or starting the mapping from the allowed symbols at the end of the time domain of the time slot. Or determining the number of symbols (while hopping the granularity according to the repeating unit, or hopping according to the repeated units of the aggregation) or mapping or determining the number of symbols from the allowed symbols in front of the time domain of the time slot (while repeating The unit is granular hopping, or frequency hopping according to the repeated unit of aggregation), wherein the allowed symbols are configured by the base station or agreed in advance as the starting symbol of the repeating unit in the time slot;

Or, for one of the physical uplink control channels, in a time slot, a symbol is allowed to be mapped backward or backward from a symbol allowed in the time slot, and a physical uplink control channel of the repeating unit in the time slot is The starting symbol position is configured by the base station and the UE or the base station is configured by signaling.

It should be noted that, in the present invention, the above mapping method can be used for frequency hopping regardless of whether all the symbols allowed to be used for the physical uplink control channel are occupied by all the repetitive units. When frequency hopping starts from one end of the slot time domain, symbols not used by the long uplink control channel are left at one end of the slot time domain, and the symbols not used by the long uplink control channel can be used to transmit data of the uplink shared channel. . The reference signal for data decoding in the uplink shared channel is located in front of the uplink shared channel, and if the symbols not used by the long PUCCH are reserved in front of the uplink shared channel, they are closer to the reference signal, which is advantageous for Data decoding; if symbols not used by long PUCCH are reserved behind the upstream shared channel, the performance of the decoding will be reduced, but the system will still work.

In other embodiments, each repeating unit of one physical uplink control channel includes a decoded reference signal (RS).

In other embodiments, the decoded reference signal within the repeating unit is located in the first few symbols within the repeating unit (eg, in the first or first two symbols).

In other embodiments, whether the decoded reference signal is included in the repeating unit is configured by the base station or pre-agreed (eg, for a long PUCCH of large load, the partial repeating unit may not transmit the decoded reference signal to reduce reference signal overhead). If the base station is configured, the base station sends configuration information through physical layer signaling or higher layer signaling. If it is previously agreed by the base station and the UE, it is necessary to appoint or not to configure the location of the repeating unit of the decoding reference signal; wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.

In other embodiments, the reference signal (RS) symbol also allows mapping of upstream data.

In other embodiments, the mapping between the repeating units of one physical uplink control channel is a time domain priority mapping (ie, the repeating unit repeats the mapping in the time domain within a given frequency domain, and does not allow the frequency domain to repeat the mapping); The repeating unit of the physical uplink control channel is only mapped once in a given frequency domain range (that is, in a given time domain range, the repeating unit of one physical uplink control channel is mapped only once in the frequency domain, that is, the frequency domain is not allowed to repeat) ;

Or, the mapping between the repeating units of one physical uplink control channel is a frequency domain priority mapping (ie, the repeating unit repeats the mapping in the frequency domain in a given time domain range, and the repeated mapping is not allowed in the time domain); one physical uplink control The repeating unit of the channel is mapped only once in a given time domain range (ie, in a given frequency domain, the repeating unit of one physical uplink control channel is mapped only once in the time domain, and the immediate domain does not allow repetition).

In an embodiment of the invention, the mapping between the repeating units of one physical uplink control channel is a time domain priority mapping;

a repeating unit of a physical uplink control channel, repeating the mapping of the repeating unit in the time domain within a given frequency domain, and not allowing repeated mapping in the frequency domain;

A repeating unit of a physical uplink control channel, in which the repeating unit repeats mapping in the time domain, and when frequency hopping between the repeating units, the repeating unit is in the given time domain in the frequency domain of the frequency hopping Frequency domain repeat mapping is not allowed in the range;

or,

The mapping between the repeating units of one physical uplink control channel is a frequency domain priority mapping;

a repeating unit of a physical uplink control channel, in which the repeating unit repeats mapping in the frequency domain within a given time domain, and does not allow time domain repeat mapping;

a repeating unit of a physical uplink control channel, repeating the mapping of the repeating unit in the frequency domain in a given time domain range, and repeating the unit at a given frequency in the time domain of the frequency hopping when the frequency unit is hopping between the repeating units Time domain repeat mapping is not allowed within the domain.

In an embodiment of the invention, when the number of repeating units in one slot is one, frequency hopping is performed in the repeating unit.

In other embodiments, the method further includes:

The base station receives data of a physical uplink control channel according to parameters of the physical uplink control channel.

As shown in FIG. 2, an embodiment of the present invention further discloses a physical uplink control channel configuration method, including:

Step S201: The user equipment receives the parameter of the physical uplink control channel sent by the base station, or the parameters of the physical uplink control channel are agreed by the base station and the user equipment in advance;

Step S202: The user equipment determines a physical uplink control channel according to the parameter; the parameter includes a time domain size and a number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel by the user equipment.

The position of the subband where the repeating unit is located;

The subband position where the repeating unit is located, and the physical resource block corresponding to the size within the subband;

The physical resource block of the repeating unit.

In an embodiment of the invention, for the same long uplink control channel, the user equipment allows repeating units of different sizes to be aggregated in one time slot.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in one slot are divided according to a repeating unit, and repeating units of different sizes appear, wherein the symbols of one repeating unit are smaller than the repeating unit. Smaller repeating units are located at the end of a time slot, either after a larger repeating unit or before a larger repeating unit; or

A symbol that is not enough for one repeating unit is aggregated with a neighboring repeating unit into a larger repeating unit, and a larger repeating unit is located at the end of one time slot, or after a smaller repeating unit, or before a smaller repeating unit.

In one embodiment of the invention, the smaller repeating units are rate matched to other repeating units in a punctured manner.

In an embodiment of the invention, the sign of the larger repeating unit that exceeds the repeating unit size is in a manner that repeats the sign in front of the larger repeating unit.

In an embodiment of the present invention, the user equipment receives parameters of the physical uplink control channel sent by the base station by using physical layer signaling and/or high layer signaling.

In other embodiments, each repeating unit of the same long uplink control channel has the same size in the time domain direction.

In other embodiments, for one physical uplink control channel, in a time slot, the repeating unit maps or determines the number of symbols from the two ends of the time slot of the time slot (while the granularity according to the repeating unit) Frequency hopping, or frequency hopping according to the repeated units of the aggregation), or starting from the symbol allowed at the end of the time domain of the time slot to map or determine the number of symbols (while hopping according to the repetition unit, or according to the aggregation The repeating unit performs frequency hopping) or maps or determines the number of symbols backward from the allowed symbols in front of the time domain of the time slot (while hopping with granularity according to the repeating unit, or hopping according to the repeated unit of aggregation). Wherein, the allowed symbols are configured by the base station or agreed in advance as the starting symbol of the repeating unit in the time slot.

In other embodiments, for one of the physical uplink control channels, when all symbols allowed to be used by the physical uplink control channel are not occupied by all the repetitive units in the slot, the repeating unit is from the time slot. Both ends of the domain start to map to the middle or determine the number of symbols (while hopping according to the repetition unit, or hopping according to the repeated units of the aggregation), or starting the mapping from the allowed symbols at the end of the time domain of the time slot. Or determining the number of symbols (while hopping the granularity according to the repeating unit, or hopping according to the repeated units of the aggregation) or mapping or determining the number of symbols from the allowed symbols in front of the time domain of the time slot (while repeating The unit is granular hopping, or hopping according to the repeating unit of the aggregation). Wherein, the allowed symbols are configured by the base station or agreed in advance as the starting symbol of the repeating unit in the time slot;

In other embodiments, each repeating unit of a physical uplink control channel includes a decoded reference signal.

In other embodiments, whether the decoded reference signal is included in the repeating unit is configured by the base station or pre-agreed (eg, for a long PUCCH of large load, the partial repeating unit may not transmit the decoded reference signal to reduce reference signal overhead). If it is configured by the base station, the base station sends configuration information through physical layer signaling or higher layer signaling. If it is previously agreed by the base station and the UE, it is necessary to appoint or not to configure the location of the repeating unit of the decoding reference signal, wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.

or,

As shown in FIG. 3, an embodiment of the present invention further discloses a base station, including a first configuration unit 10 and a first transceiver unit 20, where

The first configuration unit 10 is configured to configure the user equipment, or pre-arrange the parameters of the physical uplink control channel with the user equipment, where the parameter includes the size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control to the user equipment. channel;

The first transceiver unit 20 is configured to send parameters configured by the first configuration unit 10 to the user equipment.

In other embodiments, the first transceiver unit 20 is further configured to: receive data of a physical uplink control channel according to parameters of the physical uplink control channel.

It should be noted that the repeating unit described in the present invention may also be named as a base unit or a repeating base unit.

The position of the subband where the repeating unit is located;

The physical resource block of the repeating unit.

In an embodiment of the invention, the smaller repeating unit is rate matched with other repeating units in a punctured manner; the larger repeating unit exceeds the repeating unit size by repeating the symbol in front of the larger repeating unit The way.

In an embodiment of the invention, the first transceiver unit 20 sends the parameter to the user equipment by using physical layer signaling and/or high layer signaling.

In other embodiments, each repeating unit of a physical uplink control channel contains a decoded reference signal.

In other embodiments, whether the decoded reference signal is included in the repeating unit is configured by the base station or pre-agreed (eg, for a long PUCCH of large load, the partial repeating unit may not transmit the decoded reference signal to reduce reference signal overhead). If the base station is configured, the base station sends configuration information through physical layer signaling or higher layer signaling. If the base station and the UE agree in advance, it is necessary to stipulate the location of the repeating unit that does not configure the decoding reference signal, wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.

or,

As shown in FIG. 4, an embodiment of the present invention further discloses a user equipment, including a second transceiver unit 30 and a second determining unit 40, where

The second transceiver unit 30 is configured to receive, when the parameter of the uplink control channel is configured by the base station, a parameter of the physical uplink control channel sent by the base station, where the parameter includes a size and a number of the repeating unit, where the repeating unit is configured as a user equipment Sending a physical uplink control channel;

The second determining unit 40 is configured to determine a physical uplink control channel according to parameters received by the second transceiver unit 30 or according to parameters agreed by the base station and the user equipment in advance.

The position of the subband where the repeating unit is located;

The physical resource block of the repeating unit.

In an embodiment of the present invention, the second transceiver unit 30 receives the parameters of the physical uplink control channel sent by the base station by using physical layer signaling and/or high layer signaling.

In other embodiments, whether the decoded reference signal is included in the repeating unit is configured by the base station or pre-agreed (eg, for a long PUCCH of large load, the partial repeating unit may not transmit the decoded reference signal to reduce reference signal overhead). If the base station is configured, the base station sends configuration information through physical layer signaling or higher layer signaling. If it is previously agreed by the base station and the UE, it is necessary to appoint or not to configure the location of the repeating unit of the decoding reference signal, wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.

or,

The invention is further illustrated by the following examples, which are not to be construed as limiting the invention. The various embodiments below may exist independently, and the technical features in the different embodiments may be combined and used in combination in one embodiment. The long PUCCH herein corresponds to a physical uplink control channel (also referred to as a transmission characteristic, such as an uplink control region or uplink control). In the standard setting of NR, PUCCH may also be abbreviated as other abbreviations such as NR-PUCCH, but its original intention is still the physical uplink control channel, and the bearer content does not change, so the title does not affect the implementation of the method in this paper.

Example 1

In this embodiment, a long PUCCH format with 4 symbols as a repeating unit is described:

Assume that the long PUCCH uses the uplink slot, and the uplink slot has 14 symbols, where the first symbol is the downlink control symbol, the second symbol is the GAP, the first symbol of the last is the short PUCCH, and the remaining symbols are the symbols used by the long PUCCH.

For a small load, for example, a long PUCCH of 1 to 2 bits, you can use any of the following configurations. In these four configurations, the number of repeating units is configured by the base station. The specific value is determined according to actual requirements, such as the size of the overlay. .):

1. The repeating unit has a time domain size of 1 symbol and a frequency domain of 1 PRB, which is repeated at least 4 times.

2. The repeating unit time domain size is 1 symbol, the frequency domain is 2 PRBs, and the repetition is at least 4 times.

3. The repeating unit has a time domain size of 2 symbols and a frequency domain of 1 PRB, which is repeated at least 2 times.

4. The repeating unit has a time domain size of 2 symbols and a frequency domain of 2 PRBs, repeated at least 2 times.

The above four configuration modes can use any of the following frequency hopping modes:

1. Repeat the frequency hopping between the repeating units. For example, the first repeating unit is at the low frequency end and the second repeating unit is at the high frequency end.

2. N consecutive time-domain repeating units are mapped to the same PRB at the low-frequency end, and the remaining M time-domain consecutive repeating units are mapped to the same PRB at the high-frequency end.

In the above four configurations, the repeating unit includes an RS code for self-decoding. The RS code is located in the symbol preceding each of the repeating units. In other embodiments, the RS code can be optimized in any of the following ways:

1. The same PRB in the frequency domain and two consecutive units in the time domain. The first repeating unit configures the RS, the second repeating unit deletes the RS (that is, does not include or does not include the RS), and so on. A resource unit (RE) in which a RS is deleted in a repeating unit is used as a long PUCCH.

2. The same PRB in the frequency domain and three consecutive units in the time domain, the second repeating unit is configured with RS, the first and third repeating units are deleted by RS, and so on. A resource unit (RE) in which a RS is deleted in a repeating unit is used as a long PUCCH.

3. The same PRB in the frequency domain and four repeating units in the time domain are continuous, the first and fourth repeating units are configured with RS, and the second and third repeating units are deleted by the RS. A resource unit (RE) in which a RS is deleted in a repeating unit is used as a long PUCCH.

4. The same PRB in the frequency domain and five repeating units in the time domain are continuous, the first and fourth complex units are configured with RS, and the second, third, and fifth repeating units delete the RS. A resource unit (RE) in which a RS is deleted in a repeating unit is used as a long PUCCH.

In summary, when the frequency domain is the same PRB and there are consecutive repeating units in the time domain (for example, 2 consecutive or more), the partial repeating unit is instructed or agreed not to configure the RS. Or if the frequency domain is the same PRB, and the number of symbols included in the repeating unit in the time domain is relatively large, for example, when it is greater than three, the RS is allowed to be included in the symbols other than the first symbol in the repeating unit.

Example 2

In this embodiment, the resource allocation of the long PUCCH should comply with the following principles:

The time domain symbol of the long PUCCH satisfies the coverage requirement as much as possible, and then performs frequency domain resource expansion;

The size of the time domain repeating unit of the long PUCCH should be determined according to the available uplink symbols in the actual bearer slot.

For example, if the number of symbols that can be used for the long PUCCH in the slot is 10, and 10 symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of 5 symbols, and the number is 2; The first repeating unit of the duration PUCCH can be carried on the same PRB, and the second repeating unit can be carried on another identical PRB to achieve frequency hopping between the repeating units.

For example, if the number of symbols that can be used for the long PUCCH in the slot is eight, and the eight symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of four symbols and two numbers; The first repeating unit of the duration PUCCH can be carried on the same PRB, and the second repeating unit can be carried on another identical PRB to achieve frequency hopping between the repeating units.

For example, if the number of symbols that can be used for the long PUCCH in the slot is four, and the four symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of 2 symbols and the number of the two is 2; The first repeating unit of the duration PUCCH can be carried on the same PRB, and the second repeating unit can be carried on another identical PRB to achieve frequency hopping between the repeating units.

For example, when the number of symbols that can be used for a long PUCCH in one slot exceeds the number of symbols of the actual long PUCCH, and the symbol that can be used in the immediate domain is a long PUCCH, in the frequency domain, only one PRB can be used for the long PUCCH. Or 2 PRBs. In the same time domain, repeating units of the same long PUCCH are not allowed to repeat in the frequency domain.

For example, if the number of symbols that can be used for the long PUCCH in the slot is 11, and the 11 symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of 5 or 6 symbols, and the number of the symbols is 2 At this time, the first repeating unit of the long PUCCH contains 5 symbols, which can be carried on the same PRB, and the second repeating unit contains 6 symbols, which can be carried on another identical PRB to implement the repeating unit. Frequency hopping between.

For example, if the number of symbols that can be used for the long PUCCH in the slot is 9, and the 9 symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of 4 or 5 symbols, and the number of the symbols is 2 At this time, the first repeating unit of the long PUCCH contains 4 symbols, which can be carried on the same PRB, and the second repeating unit contains 5 symbols, which can be carried on another identical PRB to implement the repeating unit. Frequency hopping between.

For example, if the number of symbols that can be used for the long PUCCH in the slot is 7, and the 7 symbols satisfy the coverage requirement of the long PUCCH, the base station can configure the repeating unit of the long PUCCH to have a time domain size of 3 or 4 symbols, and the number of the symbols is 2 At this time, the first repeating unit of the long PUCCH contains 3 symbols, which can be carried on the same PRB, and the second repeating unit contains 4 symbols, which can be carried on another identical PRB to implement the repeating unit. Frequency hopping between.

Example 3

In the present embodiment, a method of determining a repeating unit within a slot is described.

When the number of symbols that can be used for the uplink long PUCCH in one slot is larger than the number of symbols used by the actual long PUCCH, the position of the long PUCCH at this time is determined as follows:

The base station shall classify the number of symbols actually used by the long PUCCH into at least two repeating units (in fact, this principle may not be limited to the above conditions, so it may be described that a slot contains at least 2 repeating units as long PUCCH. For example, when the repeating unit When the number of symbols is equal to the number of symbols available in the slot for long PUCCH, the slot can contain a repeating unit.). Two repeating units are respectively located at both ends of the total symbol that can be used by the long PUCCH in the slot, and symbols not used by the long PUCCH are located in the middle of the two repeating units; or, the total symbols that the two repeating units can use from the long PUCCH in the slot One end, starting to map continuously to the other end.

When a long PUCCH requires multiple slots, for example, 2 slots, and the number of symbols available for long PUCCH in the first slot is not long enough for the number of symbols of the PUCCH, and the second slot is available for the long PUCCH. When the symbol is also not used by the long PUCCH, the base station can configure the long PUCCH to have at least 2 repeating units in each slot.

Example 4

In this embodiment, the repeating units configured by the base station to the same long PUCCH have the same size in the frequency domain.

The repeating unit configured with the same long PUCCH in the base station does not perform repeated mapping in the frequency domain, that is, in the same time domain range, after a repeating unit maps once in the frequency domain, it is no longer allowed to perform mapping again in the frequency domain (except for frequency hopping, because frequency hopping In different time domain ranges).

When a long PUCCH transmission is performed, the base station determines the resource as: determining the total number of symbols required in the time domain, determining the time domain size of the repeating unit, encoding the information to be transmitted according to the given code rate k, determining the number of PRBs of the frequency domain resource, and determining the repeating unit. The number of repetitions m, the final PUCCH transmission code rate is k/m, and m can take 1, that is, only one repeating unit is transmitted, and there is no repetition.

Example 5

The base station configures the size and number of repeating units of the long PUCCH for the UE, and the number of frequency domain resources PRB. The base station can transmit the foregoing parameter to the UE by using physical layer signaling, for example, downlink control information (for example, in the uplink authorization information), and the UE receives the foregoing parameter sent by the base station to determine a resource of the long PUCCH;

Or the base station sends the foregoing parameter to the UE by using the high layer signaling, for example, an RRC message, and the UE receives the foregoing parameter sent by the base station, and determines the resource of the long PUCCH;

Alternatively, the base station configures a repeating unit time domain size set that the UE can use by using the high layer signaling, and then indicates the repeating unit time domain size from the set through the physical layer signaling, and the remaining parameters are still carried by the physical layer signaling.

Example 6

The total number of symbols of the long PUCCH is likely to be different due to the different locations of the UEs, resulting in different total symbol lengths of long PUCCHs of different UEs, for example, more symbols required by the cell edge are long PUCCHs. In order to facilitate the resource allocation of the long PUCCH of different UEs and facilitate the reuse of the remaining symbols, in this embodiment, the resource allocation of the long PUCCH should comply with the following principles:

In the slot, the symbols of the long PUCCH are uniformly allocated from a certain symbol at the end of the slot, and whether the symbol of the short PUCCH is included here, an appointment or signaling indication (including physical layer signaling or high layer signaling indication) may be implemented. For example, if a long PUCCH of a certain UE requires 4 symbols, or a repetition unit composed of 4 symbols, the long PUCCH of the UE is allocated forward from the penultimate symbol (inclusive) (for example, the last symbol is assumed to be short). PUCCH, and the long PUCCH does not contain a short PUCCH symbol; or the UE's long PUCCH is allocated forward from the last symbol (inclusive) of the slot). The remaining symbols in the slot will be used to transmit data of the Physical Uplink Shared Channel (PUSCH). The base station can use the existing technology to configure the symbol position of the PUSCH for the UE, so that the long PUCCH can be utilized. Unoccupied symbols transmit PUSCH. That is, the long PUCCH is configured with symbols from the end of the slot, and the PUSCH is configured with symbols backward from the beginning of the slot (prior art), so that the prior art can be reused to make full use of resources.

Example 7

In the slot, the symbols included in the slot are used for downlink control information, GAP, uplink data, short PUCCH, etc., and the number of symbols occupied by the downlink control information may be 0 to 2 symbols (the current upper limit is 2, but it is also possible The change, for example, 3), GAP (currently according to one symbol plan, may also be less than one symbol), the short PUCCH may also occupy more symbols (for example, when short PUCCH of multiple UEs is time division multiplexed). Therefore, when the slot contains 7 or 14 symbols, the number of symbols left for the long PUCCH is changed, and the position is also changed. In order to facilitate the design of the long PUCCH, in the present embodiment, the starting symbol position of the long PUCCH is proposed by the base station and the UE (or the base station is configured by signaling, semi-static RRC message or physical layer signaling or a combination of both) ( It can be derived from the starting symbol position, or it can be calculated backward from the starting position, which one can be agreed or configured. For example, for a slot of 7 symbols, the long PUCCH always starts from the fourth symbol and deducts the symbol backwards; for example, if the long PUCCH or the repeating unit contains 4 symbols, then the 4th, 5th, 6th, and 7th are For the symbol of the long PUCCH, the long PUCCH should be allowed to occupy the symbol of the short PUCCH at this time, or there is no short PUCCH in the slot; for example, for the slot of 14 symbols, the long PUCCH always starts from the fourth symbol. For example, if the long PUCCH or the repeating unit contains 4 symbols, then the 4th, 5th, 6th, and 7th are long PUCCH symbols, and the long PUCCH should be allowed to occupy the short PUCCH symbol, or There is no short PUCCH in this slot.

For a long PUCCH, the base station can configure its start symbol and agree to derive the number of symbols for the long PUCCH from the start symbol forward or backward. The symbol preceding the slot after the start symbol is configured to estimate the number of symbols of the long PUCCH (or the end symbol of the long PUCCH is configured, and the symbols before the end symbol are occupied by the long PUCCH), which is beneficial to avoid the number of symbols due to the downlink control information. The effect of the change on the fixed long PUCCH start symbol. For example, the fixed PUCCH is fixed from the 4th symbol in the slot. If the downlink control information in the slot occupies one symbol, the GAP occupies one symbol. At this time, the third symbol is not occupied by the long PUCCH, and there is waste, or when the uplink data is used. To make it complicated (the number of symbols is small, it is difficult to send uplink data with less overhead).

Example 8

FIG. 5 is a schematic diagram of a mapping pattern of a repeating unit composed of two symbols in a slot structure of the above behavior main; FIG. 6 is a schematic diagram of a mapping pattern of a repeating unit composed of two symbols in a pure uplink-based slot structure. .

As shown in FIG. 5 and FIG. 6, long PUCCHs of different UEs are frequency-multiplexed or time-division or code-multiplexed together. In FIG. 5, the repeating unit of the long PUCCH starts from the penultimate symbol as a start symbol, and starts to estimate the PUCCH symbol in the slot. For example, UE1, the start symbol of the long PUCCH is the penultimate symbol (in the start symbol, the base station also needs to indicate or agree from which side the repeating unit is mapped, for example, the repeating unit of UE1 should be indicated from the high frequency side. The start mapping, for example, the repeating unit of UE2 should be indicated to start mapping from the low frequency side), the repeating unit size is 2, the number is 4, and frequency hopping between each repeating unit.

The base station can configure the number and location of symbols for the long PUCCH in the slot. For example, the number of symbols that can be used for a long PUCCH in a slot is 10 (including that the entire slot symbol is all used for a long PUCCH), and is the last (or the first) 10 symbols of the uplink transmission part in the slot, and (yes/ No) Includes short PUCCH areas.

In other embodiments, the base station can configure the number and location of symbols for the long PUCCH in the slot, as well as the corresponding frequency domain locations. The frequency domain location can be described as a subband or PRB. Based on the example of the previous paragraph, the frequency domain description is further increased. For example, the frequency domain configuration described as the long PUCCH of the previous segment occurs in subband 0. For different subbands, different numbers of symbols and locations for long PUCCHs are allowed to be configured. As another example, it is described in which PRBs the frequency domain configuration of the long PUCCH of the previous segment occurs.

Obviously, when the number of symbols and the position, and the frequency domain position are simultaneously in one slot, the number and position of the corresponding long PUCCH symbols are allowed to be allocated in different frequency domain positions (subbands or PRBs) in the slot. For example, in the slot, the number and position of symbols used by the long PUCCH are configured in the subband 0 (or a group of PRBs); the number of symbols and the position used by the long PUCCH are arranged in the subband 1.

Obviously, when the number and position of symbols and the position of the frequency domain are simultaneously in one slot, a long PUCCH between different frequency domain positions in the slot is allowed to be frequency division multiplexed, or different PUCCHs in the same frequency domain are time-divided. use. For example, in the base station configuration subband 0 (or a group of PRBs), the long PUCCH occupies 10 symbols as one UE, and in the subband 1, the long PUCCH allocates 10 symbols to the long PUCCH of the 2 UEs for time division multiplexing, They occupy 5 symbols each, and also allow symbols to cross time. Here, the 10 symbols in subband 0 and subband 1 may be the same symbol.

Within the repeating unit of the same size, long PUCCHs of different UEs are allowed to perform code division multiplexing.

The technical features in the various embodiments of the present invention can be used in combination in one embodiment without conflict. Each embodiment is merely an optimal implementation of the present invention and is not intended to limit the scope of the present invention.

The physical uplink control channel configuration method, the base station, and the user equipment provided by the embodiment of the present invention can flexibly and conveniently extend the uplink control channel in the time domain direction through the repeating unit, and can satisfy the NR medium and long uplink control channel needs to be across slots and a large range. The need for load changes.

In other embodiments, the first symbol and the second symbol are considered to constitute a repeating unit of 2 symbols, including:

Each of the repeating units of the physical uplink control channel has the same time domain size;

Or, each of the repeating units of the physical uplink control channel includes two different time domain sizes, and different repeating units with other time domain sizes are located at the beginning or the end of the physical uplink control channel or time slot.

Wherein, one of the repeating units includes orthogonal frequency division multiplexing symbols located in one time slot.

In other embodiments, the first symbol and the second symbol are considered to constitute a repeating unit, including:

The repeat unit contains 2 different time domain sizes, which are:

The symbols of one repeating unit constitute a smaller repeating unit, the smaller repeating unit is located at the end of one time slot, or after a larger repeating unit, or before a larger repeating unit; or

The sign of one repeating unit is aggregated with a neighboring repeating unit into a larger repeating unit, the larger repeating unit is located at the end of one time slot, or after a smaller repeating unit, or before a smaller repeating unit;

Wherein, the smaller repeating unit performs rate matching with other repeating units by means of punching; the symbol of the larger repeating unit exceeding the repeating unit size adopts a manner of repeating the symbol in front of the larger repeating unit.

In other embodiments, the first symbol of the physical uplink control channel is the decoded reference signal RS, the second symbol is the uplink control information, and the first symbol and the second symbol are sequentially repeated in subsequent symbols. The symbol until the total number of symbols satisfies the required number of symbols, is:

The PUCCH composition that satisfies the required number of symbols includes one of the following:

The required number of symbols is 4, and the PUCCH is composed of 2 repeating units, and the pattern is: RU+RU;

The required number of symbols is 6, and the PUCCH is composed of 3 repeating units, and the pattern is: RU+RU+RU;

The required number of symbols is 8, and the PUCCH is composed of 4 repeating units, and the pattern is: RU+RU+RU+RU;

The required number of symbols is 10, and the PUCCH is composed of 5 repeating units, and the pattern is: RU+RU+RU+RU+RU;

The required number of symbols is 12, and the PUCCH is composed of 6 repeating units, and the pattern is: RU+RU+RU+RU+RU+RU;

The required number of symbols is 14, and the PUCCH is composed of 7 repeating units, and the pattern is: RU+RU+RU+RU+RU+RU+RU;

Where R represents a symbol of an RS, U represents a symbol of uplink control information, RU represents a repeating unit of 2 symbols, and RSs in all RS symbols in one PUCCH are the same, in the symbols of all uplink control information The uplink control information is the same.

The required number of symbols is 5, and the PUCCH is composed of 2 repeating units, and the pattern is: RU+RUR;

The required number of symbols is 7, and the PUCCH is composed of 3 repeating units, and the pattern is: RU+RU+RUR;

The required number of symbols is 9, and the PUCCH is composed of 4 repeating units, and the pattern is: RU+RU+RU+RUR;

The required number of symbols is 11, and the PUCCH is composed of 5 repeating units, and the pattern is: RU+RU+RU+RU+RUR;

The required number of symbols is 13, and the PUCCH is composed of 6 repeating units, and the pattern is: RU+RU+RU+RU+RU+RUR;

Where R represents a symbol of an RS, U represents a symbol of uplink control information, RU represents a repeating unit of 2 symbols, and RSs in all RS symbols in one PUCCH are the same, in the symbols of all uplink control information The uplink control information is the same;

Wherein RUR is a larger repeating unit, located after a smaller repeating unit, and the first two symbols RU of the larger repeating unit are a repeating unit of 2 symbols, and R of the third symbol is a symbol of the preceding unit of the repeating unit The repetition of R.

In other embodiments, for a small load, for example, a long PUCCH of 1 to 2 bits, any of the following configurations may be adopted:

The repeating unit has a time domain size of 1 symbol and a frequency domain of 1 PRB, which is repeated at least 4 times.

The repeating unit has a time domain size of 1 symbol and a frequency domain of 2 PRBs, which are repeated at least 4 times.

The repeating unit has a time domain size of 2 symbols and a frequency domain of 1 PRB, which is repeated at least 2 times.

The repeating unit has a time domain size of 2 symbols and a frequency domain of 2 PRBs, which are repeated at least 2 times.

It should be noted that, in the four configurations, the number of repeating units is configured by the base station, and the specific value is determined according to actual needs, such as the size of the coverage. )

1) Frequency hopping between repeating units in sequence. For example, the first repeating unit is at the low frequency end and the second repeating unit is at the high frequency end;

2) N time-domain continuous repeating units are mapped to the same PRB at the low-frequency end, and the remaining M time-domain continuous repeating units are mapped to the same PRB at the high-frequency end.

In the above four configurations, the repeating unit includes an RS code for self-decoding. The RS code is located in the symbol preceding each of the repeating units. In other embodiments, the RS code can be optimized in any of the following ways:"

It should be noted that, in the embodiment of the present invention, if the foregoing physical uplink control channel configuration method is implemented in the form of a software function module, and is sold or used as an independent product, it may also be stored in a computer readable storage medium. . Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. One device (which may be a user equipment or base station, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

It should be noted here that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments, and has similar advantages as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of the present invention, please refer to the description of the method embodiments of the present invention.

It is to be noted that FIG. 7 is a schematic diagram of a hardware entity of a physical uplink control channel configuration device according to an embodiment of the present invention. As shown in FIG. 7, the hardware entity of the device 700 includes: a processor 701, a communication interface 702, and a memory 703. ,among them

Processor 701 typically controls the overall operation of device 700.

Communication interface 702 can enable device 700 to communicate with other terminals or servers over a network.

The memory 703 is configured to store instructions and applications executable by the processor 701, and may also cache data to be processed or processed by the processor 701 and each module in the device 700 (eg, voice communication data, which may be through flash memory (FLASH) or Random access memory (RAM) implementation.

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation. The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units; they may be located in one place or distributed on multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

It will be understood by those skilled in the art that all or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a removable storage device, a read only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes.

Alternatively, the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computing device (which may be a personal computer, server, or network device, etc.) is implemented to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.

The above is only the embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. It is intended to be covered by the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

Claims

A physical uplink control channel configuration method includes:

The base station is configured for the user equipment, or pre-arranges the parameters of the physical uplink control channel with the user equipment, where the parameter includes the time domain size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel to the user equipment;

If the base station configures a parameter of the physical uplink control channel, the base station sends the parameter to the user equipment.
The method of claim 1, wherein the time domain size of the repeating unit comprises n orthogonal frequency division multiplexing symbols, or n time slots, or n mini time slots, where n is a natural number;

The number of symbols in the time domain of the repeating unit is at most the sum of the number of symbols available for the physical uplink control channel in the time slot.
The method according to claim 2, wherein the time domain size of said repeating unit comprises one of: one, two, four, five, seven, ten or eleven orthogonal frequency division complexes. Use the symbol;

When the repeating unit time domain size includes 1 symbol, one of the physical uplink control channels includes at least 4 repeating units; when the repeating unit time domain size includes 2 symbols, one of the physical uplink control channels is at least Includes 2 repeat units.
The method according to claim 1, wherein the parameter further comprises a parameter of the repeating unit in a frequency domain direction, wherein a parameter of the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, including One of the following:

The sub-band position where the repeating unit is located;

a subband position where the repeating unit is located, and a physical resource block corresponding to the size within the subband;

The physical resource block of the repeating unit.
The method according to claim 1, wherein each of the repeating units of one physical uplink control channel has the same frequency domain size, or the number of frequency domain subcarriers is the same, or the number of physical resource blocks is the same.
The method according to claim 1, wherein each of said repeating units of said one physical uplink control channel is independently capable of decoding, and information transmitted in one physical uplink control channel can be obtained by decoding.
The method according to claim 1, wherein each of said repeating units of said one physical uplink control channel transmits data of the same or different redundancy versions encoded by the same original data.
The method according to claim 1, wherein the base station sends the parameter to the user equipment by using physical layer signaling and/or higher layer signaling;

The physical layer signaling includes: transmitting and obtaining downlink control information dedicated to the user equipment or dedicated to the user equipment group through public downlink control information transmission and acquisition;

The high layer signaling includes: transmitting and obtaining information through a broadcast system, and transmitting and obtaining through a user equipment or a user equipment group dedicated RRC message;

The physical layer signaling and the high layer signaling include: configuring a possible value set of the parameter by using high layer signaling, where the physical layer signaling indicates a specific value of the parameter from the value set;

If the number of repeating units in the parameter is previously agreed, the parameter is the time domain size of the repeating unit; if the time domain size of the repeating unit in the parameter is previously agreed, the parameter is a repeating unit. The number.
The method according to claim 1, wherein each of said repeating units of said one physical uplink control channel has the same time domain size;

Or, each of the repeating units of the physical uplink control channel includes two different time domain sizes, and different repeating units with other time domain sizes are located at the beginning or end of the physical uplink control channel or time slot. ;

Wherein, one of the repeating units includes orthogonal frequency division multiplexing symbols located in one time slot.
The method of claim 9 wherein said comprising two different time domain sizes is:

The symbols of one repeating unit constitute a smaller repeating unit, the smaller repeating unit is located at the end of one time slot, or after a larger repeating unit, or before a larger repeating unit; or

The sign of one repeating unit is aggregated with a neighboring repeating unit into a larger repeating unit, with the larger repeating unit being located at the end of one time slot, either after a smaller repeating unit or before a smaller repeating unit.
The method according to claim 9, wherein the smaller repeating unit performs rate matching with other repeating units by means of puncturing; the larger repeating unit exceeds the repeating unit size by repeating the larger repeating The way the symbol is in front of the unit.
The method according to claim 1, wherein one of the physical uplink control channels performs frequency hopping according to the repeating unit according to the granularity when hopping in one time slot or across time slots; or according to the aggregation Repeating unit for frequency hopping;

Alternatively, when the physical uplink control channel hops in a time slot or across time slots, when the number of repeating units in the one time slot is one, frequency hopping is performed in the repeating unit.
The method according to claim 1, wherein, for one of the physical uplink control channels, in a time slot, the repeating unit maps or determines a symbol number from the two ends of the time slot of the time slot, or The allowed symbols at the end of the time slot of the time slot start to map or determine the number of symbols, or map or determine the number of symbols from the allowed symbols in front of the time domain of the time slot, wherein the allowed symbols are base station configurations. Or pre-agreed, as the starting symbol of the repeating unit in the time slot.
The physical uplink control channel configuration method according to claim 1, wherein, for one of the physical uplink control channels, all symbols allowed to be used for the physical uplink control channel are not all of the repeating units in a time slot. When occupied, the repeating unit maps or determines the number of symbols from the two ends of the time slot of the time slot, or starts to map or determine the number of symbols from the allowed symbols at the end of the time domain of the time slot, or The allowed symbols in the front of the time slot of the time slot start to map or determine the number of symbols, wherein the allowed symbols are configured by the base station or agreed in advance as the starting symbol of the repeating unit in the time slot;

Or, for one of the physical uplink control channels, in a time slot, a symbol is allowed to be mapped backward or backward from a symbol allowed in the time slot, and a physical uplink control channel of the repeating unit in the time slot is The starting symbol position is configured by the base station and the UE or the base station is configured by signaling.
The method of claim 1 wherein

Each of the repeating units of one of the physical uplink control channels includes a decoded reference signal, wherein the reference signal is located in a symbol preceding the repeating unit.
The method of claim 1 wherein

Whether the decoded reference signal is included in the repeating unit is configured by the base station or previously agreed by the base station and the user equipment;

If the base station is configured, the base station sends configuration information through physical layer signaling or high layer signaling; if the base station and the user equipment agree in advance, the base station agrees to configure or not to configure decoding at the same time. The position of the repeating unit of the reference signal; wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.
The method of claim 1 wherein

Mapping between the repeating units of the physical uplink control channel is a time domain priority mapping;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the time domain within a given frequency domain, and not allowing repeated mapping in the frequency domain;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the time domain within a given frequency domain, and repeating the unit in the frequency domain of the frequency hopping when the frequency unit is hopping between the repeating units Frequency domain repeat mapping is not allowed in the timing domain;

or,

Mapping between the repeating units of the physical uplink control channel is a frequency domain priority mapping;

a repeating unit of the physical uplink control channel, in which the repeating unit repeats the mapping in the frequency domain within a given time domain, and does not allow time domain repeat mapping;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the frequency domain in a given time domain range, and repeating the unit in the time domain of the frequency hopping when the frequency hopping between the repeating units Time domain repeat mapping is not allowed in the fixed frequency domain.
The method of claim 1, wherein the frequency hopping is performed within the repeating unit when the number of repeating units in the one time slot is one.
The method according to claim 1, wherein the base station receives data of a physical uplink control channel according to parameters of the physical uplink control channel.
A physical uplink control channel configuration method includes:

The user equipment receives the parameter of the physical uplink control channel sent by the base station, or the parameter of the physical uplink control channel is previously agreed by the base station and the user equipment, and the user equipment determines the physical uplink control channel according to the parameter;

The parameter includes a time domain size and a number of the repeating unit, and the repeating unit is configured to send a physical uplink control channel to the user equipment.
The method according to claim 20, wherein the size of the repeating unit comprises n orthogonal frequency division multiplexing symbols, or n time slots, or n mini slots, where n is a natural number;

The number of symbols in the time domain of the repeating unit is at most the sum of the number of symbols available for the physical uplink control channel in the time slot.
The method according to claim 20, wherein the time domain size of said repeating unit comprises one of: one, two, four, five, seven, ten or eleven orthogonal frequency division complexes. Use the symbol;

When the repeating unit time domain size includes 1 symbol, one of the physical uplink control channels includes at least 4 repeating units; when the repeating unit time domain size includes 2 symbols, one of the physical uplink control channels is at least Includes 2 repeat units.
The method according to claim 20, wherein said parameter further comprises a parameter of said repeating unit in a frequency domain direction, wherein said parameter of said frequency domain direction is used to indicate a frequency domain position and/or size of said repeating unit, including One of the following:

The position of the subband where the repeating unit is located;

The subband position where the repeating unit is located, and the physical resource block corresponding to the size within the subband;

The physical resource block of the repeating unit.
The method according to claim 20, wherein each of the repeating units of the same long uplink control channel has the same frequency domain size, or the number of frequency domain subcarriers is the same, or the number of physical resource blocks is the same.
The method according to claim 20, wherein each of said repeating units of said one physical uplink control channel is independently capable of decoding, and information transmitted in one physical uplink control channel can be obtained by decoding.
The method according to claim 20, wherein, for one of said physical uplink control channels, when symbols in one slot are divided according to said repeating unit, said repeating units of different sizes appear, wherein

A symbol that is not enough for one repeating unit constitutes a smaller repeating unit, and a smaller repeating unit is located at the end of one time slot, or after a larger repeating unit, or before a larger repeating unit; or

A symbol that is not enough for one repeating unit is aggregated with a neighboring repeating unit into a larger repeating unit, and a larger repeating unit is located at the end of one time slot, or after a smaller repeating unit, or before a smaller repeating unit.
The method according to claim 26, wherein said smaller repeating unit is rate matched with other repeating units by means of puncturing; said larger repeating unit exceeding said repeating unit size is repeated by repeating said larger repeat The way the symbol is in front of the unit.
The method according to claim 20, wherein each of said repeating units of said one physical uplink control channel transmits data of the same or different redundancy versions encoded by the same original data.
The method according to claim 20, wherein the base station sends the parameter to the user equipment by physical layer signaling and/or higher layer signaling;

The physical layer signaling includes: transmitting and obtaining downlink control information dedicated to the user equipment or dedicated to the user equipment group through public downlink control information transmission and acquisition;

The high layer signaling includes: transmitting and obtaining information through a broadcast system, and transmitting and obtaining through a user equipment or a user equipment group dedicated RRC message;

The physical layer signaling and the high layer signaling include: configuring a possible value set of the parameter by using high layer signaling, where the physical layer signaling indicates a specific value of the parameter from the value set;

If the number of repeating units in the parameter is previously agreed, the parameter is the time domain size of the repeating unit; if the time domain size of the repeating unit in the parameter is previously agreed, the parameter is a repeating unit. The number.
The method according to claim 20, wherein each of said repeating units of said one physical uplink control channel has the same time domain size;

Or, each of the repeating units of the physical uplink control channel includes two different time domain sizes, and different repeating units with other time domain sizes are located at the beginning or end of the physical uplink control channel or time slot. ;

Wherein, one of the repeating units includes orthogonal frequency division multiplexing symbols located in one time slot.
The method according to claim 20, wherein one of said physical uplink control channels performs frequency hopping according to said repeating unit in granularity when hopping in one time slot or across time slots; or according to said aggregation Repeating unit for frequency hopping;

Alternatively, when the physical uplink control channel hops in a time slot or across time slots, when the number of repeating units in the one time slot is one, frequency hopping is performed in the repeating unit.
The method according to claim 31, wherein, for one of the physical uplink control channels, in a time slot, the repeating unit maps or determines the number of symbols from the two ends of the time slot of the time slot, or The allowed symbols at the end of the time slot of the time slot start to map or determine the number of symbols, or map or determine the number of symbols from the allowed symbols in front of the time domain of the time slot, wherein the allowed symbols are base station configurations. Or pre-agreed, as the starting symbol of the repeating unit in the time slot.
The method according to claim 31, wherein, for one of said physical uplink control channels, in a time slot, when all symbols allowed to be used for said physical uplink control channel are not fully occupied by all said repeating units, said The repeating unit maps or determines the number of symbols from the ends of the time domain of the time slot, or starts to map or determine the number of symbols from the allowed symbols at the end of the time domain of the time slot, or from the time slot The allowed symbols in front of the domain start to map backward or determine the number of symbols, wherein the allowed symbols are configured by the base station or pre-agreed as the starting symbol of the repeating unit in the time slot;

Or, for one of the physical uplink control channels, in a time slot, a symbol is allowed to be mapped backward or backward from a symbol allowed in the time slot, and a physical uplink control channel of the repeating unit in the time slot is The starting symbol position is configured by the base station and the UE or the base station is configured by signaling.
The method of claim 20 wherein each of said repeating units of said one physical uplink control channel comprises a decoded reference signal, wherein said reference signal is located in a symbol preceding said repeating unit.
The method according to claim 20, wherein whether the decoded reference signal is included in the repeating unit is configured by the base station or agreed by the base station and the user equipment in advance;

If the base station is configured, the base station sends configuration information through physical layer signaling or high layer signaling; if the base station and the user equipment agree in advance, the base station agrees to configure or not to configure decoding at the same time. The position of the repeating unit of the reference signal, wherein if the reference signal is included, the reference signal is located in the symbol preceding the repeating unit.
The method of claim 20, wherein

The mapping between the repeating units of the physical uplink control channel is a time domain priority mapping;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the time domain within a given frequency domain, and not allowing repeated mapping in the frequency domain;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the time domain within a given frequency domain, and repeating the unit in the frequency domain of the frequency hopping when the frequency unit is hopping between the repeating units Frequency domain repeat mapping is not allowed in the timing domain;

or,

Mapping between the repeating units of the physical uplink control channel is a frequency domain priority mapping;

a repeating unit of a physical uplink control channel, in which the repeating unit repeats mapping in the frequency domain within a given time domain, and does not allow time domain repeat mapping;

a repeating unit of the physical uplink control channel, repeating the mapping of the repeating unit in the frequency domain in a given time domain range, and repeating the unit in the time domain of the frequency hopping when the frequency hopping between the repeating units Time domain repeat mapping is not allowed in the fixed frequency domain.
The method according to claim 20, wherein when the number of repeating units in said one time slot is one, frequency hopping is performed in said repeating unit.
A base station, comprising: a first configuration unit and a first transceiver unit, wherein

The first configuration unit is configured to configure the user equipment, or pre-arrange the parameters of the physical uplink control channel with the user equipment, where the parameter includes the size and the number of the repeating unit, and the repeating unit is configured to send the physical uplink control channel to the user equipment. ;

The first transceiver unit is configured to send the parameter configured by the first configuration unit to the user equipment.
The base station according to claim 38, wherein the first transceiver unit is further configured to: receive data of the physical uplink control channel according to a parameter of the physical uplink control channel.
The base station according to claim 38, wherein the size of said repeating unit comprises n orthogonal frequency division multiplexing symbols, or n time slots, or n mini slots, where n is a natural number.
The base station according to claim 38, wherein said parameter further comprises a parameter of said repeating unit in a frequency domain direction, wherein a parameter in a frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, including the following One:

The sub-band position where the repeating unit is located;

a subband position where the repeating unit is located, and a physical resource block corresponding to the size within the subband;

The physical resource block of the repeating unit.
a user equipment, comprising: a second transceiver unit and a second determining unit, wherein

The second transceiver unit is configured to receive a parameter of a physical uplink control channel sent by the base station, where the parameter includes a size and a number of the repeating unit, where the repeating unit is configured to send the physical uplink control channel by the user equipment;

The second determining unit is configured to configure the physical uplink control channel according to the parameter received by the second transceiver unit or according to the parameters agreed by the user equipment and the base station in advance.
The user equipment according to claim 42, wherein the size of the repeating unit comprises n orthogonal frequency division multiplexing symbols, or n time slots, or n mini slots, where n is a natural number.
The user equipment according to claim 42, wherein the parameter further comprises a parameter of the repeating unit in a frequency domain direction, wherein a parameter of the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, including One of the descriptions:

The sub-band position where the repeating unit is located;

a subband position where the repeating unit is located, and a physical resource block corresponding to the size within the subband;

The physical resource block of the repeating unit.
A base station comprising a memory and a processor, the memory storing a computer program executable on a processor, the processor executing the program to implement the physical uplink control channel configuration according to any one of claims 1 to 19. The steps in the method.
A user equipment comprising a memory and a processor, the memory storing a computer program executable on a processor, the processor executing the program to implement the physical uplink control channel of any one of claims 20 to 37 The steps in the configuration method.
A computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps in the physical uplink control channel configuration method according to any one of claims 1 to 19, or the computer program is The step of implementing the physical uplink control channel configuration method according to any one of claims 20 to 37 when the processor executes.
A physical uplink control channel configuration method includes:

For the uplink control information carrying the 1-2 bits, the base station and the UE agree on the physical uplink control channel structure: the first symbol of the physical uplink control channel is the decoded reference signal RS, and the second symbol is the uplink control information, and the subsequent symbols are The first symbol and the second symbol are sequentially repeated until the total number of symbols satisfies the required number of symbols.
The method of claim 48, wherein said first symbol and said second symbol are considered to constitute a repeating unit of 2 symbols, comprising:

Each of the repeating units of the physical uplink control channel has the same time domain size;

Or, each of the repeating units of the physical uplink control channel includes two different time domain sizes, and different repeating units with other time domain sizes are located at the beginning or the end of the physical uplink control channel or time slot;

Wherein, one of the repeating units includes orthogonal frequency division multiplexing symbols located in one time slot.
The method of claim 48, wherein said first symbol and said second symbol are considered to constitute a repeating unit, comprising:

The repeat unit contains 2 different time domain sizes, which are:

The symbols of one repeating unit constitute a smaller repeating unit, the smaller repeating unit is located at the end of one time slot, or after a larger repeating unit, or before a larger repeating unit; or

The sign of one repeating unit is aggregated with a neighboring repeating unit into a larger repeating unit, the larger repeating unit is located at the end of one time slot, or after a smaller repeating unit, or before a smaller repeating unit;

Wherein, the smaller repeating unit performs rate matching with other repeating units by means of punching; the symbol of the larger repeating unit exceeding the repeating unit size adopts a manner of repeating the symbol in front of the larger repeating unit.
The method according to claim 48, wherein the first symbol of the physical uplink control channel is a decoded reference signal RS, the second symbol is uplink control information, and the first symbol is sequentially repeated in subsequent symbols. And the second symbol until the total number of symbols satisfies the required number of symbols, which is:

The PUCCH composition that satisfies the required number of symbols includes one of the following:

The required number of symbols is 4, and the PUCCH is composed of 2 repeating units, and the pattern is: RU+RU;

The required number of symbols is 6, and the PUCCH is composed of 3 repeating units, and the pattern is: RU+RU+RU;

The required number of symbols is 8, and the PUCCH is composed of 4 repeating units, and the pattern is: RU+RU+RU+RU;

The required number of symbols is 10, and the PUCCH is composed of 5 repeating units, and the pattern is: RU+RU+RU+RU+RU;

The required number of symbols is 12, and the PUCCH is composed of 6 repeating units, and the pattern is: RU+RU+RU+RU+RU+RU;

The required number of symbols is 14, and the PUCCH is composed of 7 repeating units, and the pattern is: RU+RU+RU+RU+RU+RU+RU;

Where R represents a symbol of an RS, U represents a symbol of uplink control information, RU represents a repeating unit of 2 symbols, and RSs in all RS symbols in one PUCCH are the same, in the symbols of all uplink control information The uplink control information is the same.
The method according to claim 48, wherein the first symbol of the physical uplink control channel is a decoded reference signal RS, the second symbol is uplink control information, and the first symbol is sequentially repeated in subsequent symbols. And the second symbol until the total number of symbols satisfies the required number of symbols, which is:

The PUCCH composition that satisfies the required number of symbols includes one of the following:

The required number of symbols is 5, and the PUCCH is composed of 2 repeating units, and the pattern is: RU+RUR;

The required number of symbols is 7, and the PUCCH is composed of 3 repeating units, and the pattern is: RU+RU+RUR;

The required number of symbols is 9, and the PUCCH is composed of 4 repeating units, and the pattern is: RU+RU+RU+RUR;

The required number of symbols is 11, and the PUCCH is composed of 5 repeating units, and the pattern is: RU+RU+RU+RU+RUR;

The required number of symbols is 13, and the PUCCH is composed of 6 repeating units, and the pattern is: RU+RU+RU+RU+RU+RUR;

Where R represents a symbol of an RS, U represents a symbol of uplink control information, RU represents a repeating unit of 2 symbols, and RSs in all RS symbols in one PUCCH are the same, in the symbols of all uplink control information The uplink control information is the same;

Wherein RUR is a larger repeating unit, located after a smaller repeating unit, and the first two symbols RU of the larger repeating unit are a repeating unit of 2 symbols, and R of the third symbol is a symbol of the preceding unit of the repeating unit The repetition of R.