CN108632191B

CN108632191B - Physical uplink control channel configuration method, base station and user equipment

Info

Publication number: CN108632191B
Application number: CN201710184787.5A
Authority: CN
Inventors: 苟伟; 毕峰; 郝鹏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2022-06-03
Anticipated expiration: 2037-03-24
Also published as: CN108632191A; WO2018171645A1

Abstract

The invention discloses a physical uplink control channel configuration method, a base station and user equipment, wherein the method comprises the following steps: the base station configures parameters of a physical uplink control channel for the user equipment or appoints the parameters of the physical uplink control channel in advance with the user equipment, wherein the parameters comprise the time domain size and the number of a repeating unit, and the repeating unit is used for the user equipment to send the physical uplink control channel; and if the base station configures the parameters of the physical uplink control channel, the base station sends the parameters to the user equipment. The method further comprises the following steps: the user equipment receives the parameters of the physical uplink control channel sent by the base station, or the parameters of the physical uplink control channel are predetermined by the base station and the user equipment, and the user equipment determines the physical uplink control channel according to the parameters. The invention flexibly and conveniently expands the uplink control channel through the repeating unit, and can meet the requirements of the NR medium-length uplink control channel on slot crossing and large-scale load change.

Description

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

Technical Field

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

Background

The 5G NR (New Radio) is an ongoing research project of 3GPP (third generation partnership project), which determines a New wireless air interface standard based on Orthogonal Frequency Division Multiplexing (OFDM), and will be the basis of the next generation mobile networks. The 5G application scenarios defined by 3GPP mainly include: enhanced Mobile BroadBand (eMBB), Low-Latency and high-reliability connectivity (URLLC), and massive Machine Type Communications (mMTC). The three application scenarios have different requirements on time delay, coverage, reliability and the like: the eMBB emphasizes high peak transmission rate, has low requirement on time delay and has medium requirement on reliability; URLLC emphasizes low delay and high reliability transmission; the mMTC emphasizes a large number of terminals, has high connection density, requires larger transmission coverage and has almost no requirement on time delay.

Currently in NR systems, the definition of a slot (also referred to as scheduling unit) is summarized as follows: the slot contains at least one of a downstream portion, a guard interval (GAP), and an upstream portion. The downlink part comprises downlink control information (comprising downlink authorization information and/or uplink authorization information) and downlink data, and the uplink part comprises uplink data and a long/short uplink control area. The structure of a typical downlink slot includes: downlink control information, downlink data, GAP and a short uplink control area; downlink data, GAP, short uplink control area; downlink control information and downlink data; and fourthly, downlink data. The structure of a typical upstream slot includes: downlink control information, GAP, uplink data and a short uplink control area; second, uplink data and short uplink control area; downward control, GAP and upward data; and fourthly, uplink data.

In the NR system, uplink control channels are divided into a short uplink control channel (short PUCCH) and a long uplink control channel (long PUCCH). A short uplink control Channel, which is mainly used for a User Equipment (UE) near a cell center to send timely Acknowledgement/Negative Acknowledgement (ACK/NACK) feedback or other Channel State Information (CSI), and is generally located at the tail of a slot (for example, at the tail of 1 or 2 OFDM symbols of a downlink slot; or at the tail of 1 or 2 OFDM symbols of an uplink slot); or a few symbols before the upstream data in the slot. The long uplink control channel is mainly used for the UE at the cell edge, and occupies more OFDM symbols, so as to improve the transmission coverage of the long uplink control channel.

Currently, in the standard discussion of NR, the long uplink control channel is not designed specifically, and only a few simple conclusions are drawn, for example, the long uplink control channel can support a load ranging from 1 bit to several hundreds of bits, and the long uplink control channel can span slots. How the long uplink control channel should be designed, no effective solution has been proposed at present.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a method for configuring a physical uplink control channel, a base station, and a user equipment, which can meet the requirements that a long uplink control channel in NR needs to change across slots and a large range of loads.

In order to achieve the purpose of the invention, the technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a method for configuring a physical uplink control channel, which comprises the following steps:

the base station configures for the user equipment, or appoints parameters of the physical uplink control channel in advance with the user equipment, wherein the parameters comprise the time domain size and the number of the repeating units, and the repeating units are used for the user equipment to send the physical uplink control channel;

and if the base station configures the parameters of the physical uplink control channel, the base station sends the parameters to the user equipment.

Further, the time domain size of the repeating unit includes n orthogonal frequency division multiplexing symbols, where n is a natural number;

the number of symbols of the time domain of the repeating unit is the maximum sum of the number of symbols which can be used for a physical uplink control channel in the time slot.

Further, the time domain size of the repeating unit comprises one of: 1, 2, 4, 5, 7, 10 or 11 orthogonal frequency division multiplexing symbols;

when the time domain size of the repeating unit comprises 1 symbol, one physical uplink control channel at least comprises 4 repeating units; when the time domain size of the repeating unit includes 2 symbols, one physical uplink control channel includes at least 2 repeating units.

Further, the parameters further include a parameter of the repeating unit in a frequency domain direction, where the parameter in the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, and the parameter includes one of:

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

the position of the sub-band where the repeating unit is located and a physical resource block with a corresponding specific size in the sub-band;

physical resource blocks of the repeating unit.

Further, each of the repeating units of one physical uplink control channel has the same frequency domain size, or has the same number of frequency domain subcarriers, or has the same number of physical resource blocks.

Further, each of the repeating units of one physical uplink control channel can be decoded independently, and information transmitted in one physical uplink control channel can be obtained through decoding.

Further, for one physical uplink control channel, when symbols in one slot are divided according to the repetition units and the repetition units of different sizes occur, wherein,

symbols less than one repetition unit constitute a smaller repetition unit, the smaller repetition unit being located at the end of a slot, or after the larger repetition unit, or before the larger repetition unit; alternatively, the first and second electrodes may be,

symbols of less than one repeat unit are grouped with adjacent repeat units into a larger repeat unit, the larger repeat unit being located at the end of a slot, or after or before the smaller repeat unit.

Further, the smaller repeating unit is subjected to rate matching with other repeating units in a puncturing mode; the symbols of the larger repeat unit that exceed the repeat unit size are repeated in a manner that repeats the symbols preceding the larger repeat unit.

Further, the data transmitted by each of the repeating units of one of the physical uplink control channels is the same or different redundancy versions of the same original data after being encoded.

Further, the base station sends the parameters to the user equipment through physical layer signaling and/or higher layer signaling;

wherein the physical layer signaling comprises: the method comprises the steps of transmitting and obtaining common downlink control information, and transmitting and obtaining downlink control information special for user equipment or special for a user equipment group;

the high layer signaling comprises: transmitting and acquiring through broadcast system information, and transmitting and acquiring through a dedicated RRC message of user equipment or a user equipment group;

the physical layer signaling and the high layer signaling comprise: configuring a possible value set of the parameter through a high-level signaling, wherein a physical layer signaling indicates a specific value of the parameter from the value set;

if the number of the repeating units in the parameter is agreed in advance, the parameter is the time domain size of the repeating units; if the time domain size of the repeating units in the parameter is predetermined in advance, the parameter is the number of the repeating units.

Further, the time domain size of each repeating unit of one physical uplink control channel is the same.

Further, when one physical uplink control channel hops within a time slot or across time slots, hopping is performed according to the granularity of the repeating units; or frequency hopping according to the aggregated repeating units.

Further, in a timeslot, the repeating unit may map from both ends of the time domain of the timeslot to the middle, or map from an allowed symbol at the end of the time domain of the timeslot to the front, or map from an allowed symbol at the front of the time domain of the timeslot to the back, where the allowed symbol is configured by the base station or agreed in advance and serves as a starting symbol of the repeating unit in the timeslot.

Further, in a timeslot, when all symbols allowed to be used by the physical uplink control channel are not occupied by all the repeating units, the repeating units map from both ends of a time domain of the timeslot to the middle, or map from a symbol allowed at the end of the time domain of the timeslot to the front, or map from a symbol allowed at the front of the time domain of the timeslot to the back, where the allowed symbol is configured by the base station or agreed in advance as a starting symbol of the repeating unit in the timeslot.

Further, each of the repeating units of one of the physical uplink control channels contains a decoded reference signal, wherein the reference signal is located in a preceding symbol within the repeating unit.

Further, whether the decoded reference signal is contained in the repeating unit is configured by the base station or agreed in advance by the base station and the user equipment;

if the configuration is configured by the base station, 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 configure the position of the repeating unit of the decoded reference signal at the same time; wherein, if the reference signal is included, the reference signal is located in a previous symbol within a repetition unit.

Further, the mapping between the repeating units of one physical uplink control channel is time domain first mapping;

a repeating unit of the physical uplink control channel, wherein the repeating unit is repeatedly mapped in a time domain in a given frequency domain range, and frequency domain repeated mapping is not allowed;

a repeating unit of the physical uplink control channel, wherein the repeating unit is repeatedly mapped in a time domain within a given frequency domain range, and when frequency hopping is carried out among the repeating units, the repeating unit does not allow the repeated mapping of the frequency domain within the given time domain range within the frequency domain range of the frequency hopping;

alternatively, the first and second electrodes may be,

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

a repetition unit of the physical uplink control channel, wherein the repetition unit is repeatedly mapped in a frequency domain in a given time domain range, and the time domain repeated mapping is not allowed;

and when frequency hopping is carried out among the repeating units, the repeating unit does not allow time domain repeated mapping in the given frequency domain range.

Further, when the number of the repeating units in the one time slot is one, frequency hopping is performed in the repeating units.

Further, the base station receives data of the physical uplink control channel according to the parameter of the physical uplink control channel.

The embodiment of the invention also provides a method for configuring the physical uplink control channel, which comprises the following steps:

the user equipment receives the parameters of the physical uplink control channel sent by the base station, or the parameters of the physical uplink control channel are predetermined by the base station and the user equipment, and the user equipment determines the physical uplink control channel according to the parameters;

the parameters include the time domain size and the number of the repeating units, and the repeating units are used for the user equipment to send the physical uplink control channel.

Further, the size of the repeating unit includes n orthogonal frequency division multiplexing symbols, where n is a natural number;

Further, the parameters further include a parameter of the repeating unit in a frequency domain direction, where the parameter in the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, and includes one of:

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

the position of a sub-band where the repeating unit is located and a physical resource block with a specific size corresponding to the sub-band are arranged;

physical resource blocks of the repeating unit.

Further, the frequency domain size of each repeating unit of the same long uplink control channel is the same, or the number of frequency domain subcarriers is the same, or the number of physical resource blocks is the same.

Further, the data transmitted by each of the repeating units of one physical uplink control channel is the same or different redundancy versions of the same original data after being coded.

Further, the time domain size of each of the repeating units of one physical uplink control channel is the same.

Further, when all symbols allowed to be used by the physical uplink control channel are not fully occupied by all the repeating units in a timeslot, the repeating units map from both ends of a time domain of the timeslot to the middle, or map from a symbol allowed at the end of the time domain of the timeslot to the front, or map from a symbol allowed at the front of the time domain of the timeslot to the back, where the allowed symbol is configured by the base station or agreed in advance and serves as a starting symbol of the repeating unit in the timeslot.

if the configuration is configured by the base station, 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 with the position of a repeating unit configuring or not configuring a decoded reference signal at the same time, wherein if the reference signal is included, the reference signal is located in a previous symbol within the repeating unit.

Further, the mapping between the repeating units of one physical uplink control channel is time domain priority mapping;

alternatively, the first and second electrodes may be,

a repetition unit of a physical uplink control channel, wherein the repetition unit is repeatedly mapped in a frequency domain in a given time domain range, and the time domain repeated mapping is not allowed;

The embodiment of the invention also provides a base station, which comprises a first configuration unit and a first transceiver unit, wherein,

a first configuration unit, configured to configure a user equipment, or to agree with the user equipment in advance about parameters of a physical uplink control channel, where the parameters include the size and number of a repetition unit, and the repetition unit is used for the user equipment to send the physical uplink control channel;

and the first transceiving unit is used for sending the parameters configured by the first configuration unit to the user equipment.

Further, the first transceiver unit is further configured to: and receiving the data of the physical uplink control channel according to the parameters of the physical uplink control channel.

Further, the size of the repeating unit includes n orthogonal frequency division multiplexing symbols, where n is a natural number.

Further, the parameters further include a parameter of the repeating unit in a frequency domain direction, wherein the parameter in the frequency domain direction is used for indicating a frequency domain position and/or a size of the repeating unit, and the parameter includes one of:

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

physical resource blocks of the repeating unit.

The embodiment of the invention also provides user equipment, which comprises a second transceiver unit and a second determining unit, wherein,

a second transceiver unit, configured to receive parameters of a physical uplink control channel sent by a base station, where the parameters include the size and number of a repetition unit, and the repetition unit is used for a user equipment to send the physical uplink control channel;

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

the subband position where the repeating unit is located;

the position of the sub-band where the repeating unit is located and a physical resource block with a specific size corresponding to the sub-band are arranged;

physical resource blocks of the repeating unit.

The technical scheme 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 invention flexibly and conveniently expand the uplink control channel in the time domain direction through the repeating unit, thereby meeting the requirements of the NR medium-length uplink control channel on slot crossing and large-range load change.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a flowchart illustrating a first method for configuring a physical uplink control channel according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a second method for configuring a physical uplink control channel according to an embodiment of the present invention;

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

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

FIG. 5 is a diagram of the mapping pattern of a repeating unit composed of 2 symbols in the slot structure of the above row owner;

fig. 6 is a schematic diagram of a mapping pattern of a repeating unit composed of 2 symbols in a slot structure which is purely dominant.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Herein, a slot is a scheduling unit, which may be referred to as a slot or a scheduling unit, and includes a plurality of consecutive OFDM symbols, which may be a pure uplink or downlink scheduling unit, or a scheduling unit in which uplink and downlink are mixed. The slot in this document may be a conventional slot, for example, currently, NR specifies that in a frequency band not exceeding 6GHz, the number of symbols of the slot is 7 or 14 OFDM symbols, in a frequency band exceeding 6GHz, the number of symbol data of the slot is at least 14, and other values are to be determined; the slot herein may also be a mini-slot (also referred to as a mini-scheduling unit), for example, in NR, a currently defined mini-slot includes symbol data (1 to a total number of symbols of the slot-1), and obviously, the number of symbols of the mini-slot varies widely.

The following embodiments may exist independently, and technical features in different embodiments may be combined and used in one embodiment; the PUSCH resource in this document refers to PRB resource in general, and the PUCCH resource may be PRB, OFDM symbol, subcarrier, etc. or any combination thereof; PUCCH resources not specifically described herein may be short PUCCH resources and/or long PUCCH resources; the PUSCH and PUCCH herein correspond to a physical uplink data channel (also referred to by transmission characteristics, e.g., uplink data or uplink data region), a physical uplink control channel (also referred to by transmission characteristics, e.g., uplink control region or uplink control), respectively; in the standard definition of NR, PUSCH and PUCCH may be abbreviated as NR-PUSCH and NR-PUCCH, but they are still intended as physical uplink data channel and physical uplink control channel, and the bearing content is unchanged, so the nomenclature is not used to limit the protection scope of the present application.

It should be particularly noted that the long uplink control channel herein is merely a name of an uplink control channel, and the technical solution provided herein is a physical uplink control channel configuration solution, and is suitable for any physical uplink control channel, and especially has an advantage in the long uplink control channel. Therefore, as those skilled in the art will readily appreciate, if the designation of the long uplink control channel is changed, the technical solution provided in the present application is still suitable for a configuration of a physical uplink control channel, and the designation is not used to limit the scope of the present application.

It should be noted that, in the present invention, the "same long uplink control channel" refers to "one long uplink control channel", that is, "one long uplink control channel of the UE", and hereinafter, the "same physical uplink control channel" refers to "one physical uplink control channel", that is, "one physical uplink control channel of the UE". The "uplink control channel" is also referred to as a "physical uplink control channel" herein.

As shown in fig. 1, a method for configuring a physical uplink control channel according to the present invention includes the following steps:

It is to be noted that the repeating unit described in the present invention may be named as a basic unit or a repeating basic unit.

Further, the size of the repeating unit includes n Orthogonal Frequency Division Multiplexing (OFDM) symbols (symbols), where n is a natural number.

Further, the preferred time domain size comprises one of: 1 symbol, 2 symbols, 4 symbols, 5 symbols, 7 symbols, 10 symbols, 11 symbols.

Specifically, if the size of the repetition unit is 1 OFDM symbol, one physical uplink control channel at least includes 4 repetition units; if the size of the repeating unit is 2 OFDM symbols, one physical uplink control channel at least comprises 2 repeating units.

Further, the number of symbols in the time domain of the repeating unit is maximum to the sum of the number of symbols available for the physical uplink control channel in the time slot.

It should be noted that the uplink control channel in the present invention mainly refers to a long uplink control channel, and the long uplink control channel is mainly used for the UE at the edge of the cell to occupy more OFDM symbols, so the mapping between the repeating units of the present invention follows time domain first, i.e. a first repeating unit is mapped in the time domain direction, and then a second repeating unit is mapped; since the long PUCCH is mainly used to improve coverage performance of the UE at the cell edge, the repetition of the repetition unit in the time domain direction is preferably considered in the present invention.

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

the position of a sub-band where the repeating unit is located and a Physical Resource Block (PRB) with a specific size in the sub-band;

physical resource blocks 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, the frequency domain sizes of the respective repetition units of one physical uplink control channel are the same;

if there are symbols using different subcarrier intervals in all symbols of one physical uplink control channel, the number of frequency domain subcarriers or the number of physical resource blocks in each repeating unit of one physical uplink control channel is the same.

It should be noted that, when describing the size of the repeating unit according to the number of OFDM symbols, the OFDM symbol included in the repeating unit may be located in one slot (slot) or in one mini-slot (mini-slot), and the operation method in the mini-slot is the same as that in the slot; the size of the repeating unit of the present invention can be described in terms of the number of slots or the number of mini slots of a designated symbol, in addition to the number of OFDM symbols.

Further, each of the repeating units of one physical uplink control channel can be decoded independently, and information transmitted in one physical uplink control channel can be obtained through decoding, that is, each of the repeating units can obtain information transmitted in the current physical uplink control channel through decoding, or original information contained in each of the repeating units is the same.

Further, when the number of symbols reserved for the long uplink control channel in one slot cannot be equally divided, the number of OFDM symbols between the repeating units may be unequal. The base station should avoid this as much as possible, e.g. by adjusting the size of the repetition element, the code rate, etc.

In an embodiment of the present invention, for the same long uplink control channel, the base station allows the 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 a slot are divided according to a repetition unit, and a repetition unit with a different size occurs, where a smaller repetition unit is located at the end of a slot, or after a larger repetition unit, or before the larger repetition unit.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in a slot are divided according to a repetition unit, and a repetition unit with a different size occurs, where the larger repetition unit is located at the end of the slot, or the larger repetition unit is located after the smaller repetition unit, or located before the smaller repetition unit.

Further, symbols of less than one repeating unit may make up a smaller repeating unit, or symbols of less than one repeating unit may be grouped with adjacent repeating units into a larger repeating unit.

In an embodiment of the present invention, a smaller repeating unit performs rate matching with other repeating units in a puncturing (punctured) manner; symbols of a larger repeat unit that exceed the repeat unit size are repeated in a manner that repeats symbols preceding the larger repeat unit.

When the physical uplink control channel is transmitted for one time, a base station firstly determines the total number of OFDM symbols required by a time domain of user equipment, then determines the time domain size of a repeating unit, encodes information to be transmitted according to a given code rate k, determines the number of PRBs (resource blocks) of a frequency domain, determines the number m of repeating times of the repeating unit, and finally obtains the PUCCH transmission code rate of k/m, wherein m can be 1, namely only one repeating unit is correspondingly transmitted without repetition.

In an embodiment of the present invention, when the same long uplink control channel spans a timeslot, one repeating unit cannot span the timeslot. This is because if the repeating unit is spanned over two slots, the discontinuity of the two parts of the repeating unit over the two slots may cause the repeating unit to fail to self-decode.

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

In an embodiment of the present invention, the base station sends the parameter to the user equipment through physical layer signaling and/or higher layer signaling.

Specifically, the physical layer signaling includes: the method comprises the steps of transmitting and obtaining common downlink control information, and transmitting and obtaining downlink control information special for UE or special for a UE group;

the high layer signaling includes: through broadcast system information transmission and acquisition, through UE or UE group dedicated RRC message transmission or acquisition;

the physical layer signaling and the higher layer signaling comprise: and configuring a possible value set of the parameters (the size or the number of the repeating units) through high-layer signaling, wherein the physical layer signaling indicates specific values of the parameters in the value set. The method can adapt to the characteristics of small overhead and large delay of high-level signaling, large overhead and small delay of physical layer signaling.

Further, if the number of the repeating units in the parameter is agreed in advance, the parameter is the time domain size of the repeating unit; if the time domain size of the repeating units in the parameter is predetermined in advance, the parameter is the number of the repeating units.

Preferably, the size of each repeating unit of one physical uplink control channel in the time domain direction is the same.

In an embodiment of the present invention, when a physical uplink control channel hops within a slot or across slots, frequency hopping is performed according to a granularity of a repeating unit (for example, frequency hopping is performed between single and double numbered repeating units), or frequency hopping is performed according to an aggregated repeating unit (for example, the first several repeating units and the remaining repeating units are aggregated respectively, and frequency hopping is performed between the aggregated repeating units).

Further, in a timeslot, the repetition unit starts mapping from both ends of a time domain of the timeslot to the middle (meanwhile, according to the repetition unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repetition unit), or starts mapping from a symbol allowed at the end of the time domain of the timeslot forward (simultaneously, according to the repetition unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repetition unit), or starts mapping from a symbol allowed in the front of the time domain of the timeslot backward (simultaneously, according to the repetition unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repetition unit), where the allowed symbol is configured by the base station or predetermined in advance as a starting symbol of the repetition unit in the timeslot.

Further, in a timeslot, when all symbols allowed to be used for the physical uplink control channel are not occupied by all repeating units, the repeating unit maps from both ends of a time domain of the timeslot to the middle (meanwhile, according to the repeating unit, performing granular frequency hopping, or performing frequency hopping according to an aggregated repeating unit), or maps from a symbol allowed at the end of the time domain of the timeslot to the front (simultaneously, according to the repeating unit, performing granular frequency hopping, or performing frequency hopping according to an aggregated repeating unit), or maps from a symbol allowed at the front of the time domain of the timeslot to the back (simultaneously, according to the repeating unit, performing granular frequency hopping, or performing frequency hopping according to an aggregated repeating unit), where the allowed agreed symbol is configured by the base station or is predetermined as a starting symbol of the repeating unit in the timeslot.

It should be noted that, in the present invention, the mapping method can be used to perform frequency hopping regardless of whether all symbols allowed to be used for the physical uplink control channel are occupied by all the repetition units. When frequency hopping is started from one end of the slot time domain, symbols which are not used by the long uplink control channel are left at one end of the slot time domain, and the symbols which are not used by the long uplink control channel can be used for transmitting data of the uplink shared channel. The reference signal used for data decoding in the uplink shared channel is positioned at the front symbol of the uplink shared channel, if the symbol not used by the long PUCCH is reserved in front of the uplink shared channel, the symbols are closer to the reference signal, which is beneficial to data decoding; if the symbols not used by the long PUCCH are reserved behind the uplink shared channel, the performance of decoding will be degraded, but the system will still work.

Further, each repetition unit of one physical uplink control channel contains a decoded Reference Signal (RS).

Further, the decoded reference signal within the repeat unit is located in the first few symbols (e.g., in the first or first two symbols) within the repeat unit.

Further, whether the decoded reference signal is contained in the repetition unit is configured or agreed in advance by the base station (e.g., for a long PUCCH with a large load, a partial repetition unit may not send the decoded reference signal to reduce the reference signal overhead). If the configuration information is configured by the base station, the base station sends the configuration information through physical layer signaling or high layer signaling. If the base station and the UE agree in advance, the position of a repeating unit for decoding the reference signal needs to be agreed or not; wherein the reference signal, if included, is located in a previous symbol within a repetition unit.

Further, the symbol where the Reference Signal (RS) is located also allows mapping of uplink data.

Further, the mapping between the repeating units of one physical uplink control channel is time domain first mapping (i.e. the repeating units are repeatedly mapped in the time domain in a given frequency domain range, and frequency domain repeated mapping is not allowed); the repeating unit of one physical uplink control channel is mapped only once in a given frequency domain range (i.e. the repeating unit of one physical uplink control channel is mapped only once in the frequency domain in a given time domain range, i.e. the frequency domain is not allowed to repeat);

or, the mapping between the repeating units of one physical uplink control channel is frequency domain first mapping (i.e. the repeating units are repeatedly mapped in the frequency domain in a given time domain range, and the repeated mapping is not allowed in the time domain); the repeating unit of one physical uplink control channel is mapped only once in a given time domain (i.e. in a given frequency domain, the repeating unit of one physical uplink control channel is mapped only once in the time domain, i.e. the time domain is not allowed to repeat).

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

a repetition unit of a physical uplink control channel, wherein the repetition unit is repeatedly mapped in a time domain in a given frequency domain range, and the frequency domain repeated mapping is not allowed;

a repeating unit of a physical uplink control channel, wherein the repeating unit repeatedly maps in the time domain in a given frequency domain range, and when frequency hopping is carried out among the repeating units, the repeating unit does not allow the frequency domain to repeatedly map in the given time domain range in the frequency domain range of the frequency hopping;

alternatively, the first and second liquid crystal display panels may be,

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

the repeating unit of the physical uplink control channel is repeatedly mapped in a frequency domain within a given time domain range, and when frequency hopping is carried out among the repeating units, the repeating unit does not allow time domain repeated mapping within the given frequency domain range within the frequency hopping time domain range.

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

Further, the method further comprises:

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

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

It should be noted that the uplink control channel in the present invention mainly refers to a long uplink control channel, and the long uplink control channel is mainly used for the UE at the edge of the cell to occupy more OFDM symbols, so the mapping between the repeating units of the present invention follows the time domain first, i.e. the first repeating unit is mapped in the time domain direction, and then the second repeating unit is mapped; since the long PUCCH is mainly used to improve coverage performance of the UE at the cell edge, the repetition of the repetition unit in the time domain direction is preferably considered in the present invention.

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

physical resource blocks of the repeating unit.

if all the symbols of one physical uplink control channel have symbols using different subcarrier intervals, the number of frequency domain subcarriers or the number of physical resource blocks of each repeating unit of one physical uplink control channel are the same.

Further, when the number of symbols reserved for the long uplink control channel in one slot cannot be equally divided, there is a case where the number of OFDM symbols is unequal between repetition units. The base station should avoid this as much as possible, e.g. by adjusting the size of the repetition element, the code rate, etc.

In an embodiment of the present invention, for the same long uplink control channel, the ue allows the aggregation of the different sizes of the repeating units in one timeslot.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in a slot are divided according to a repetition unit and a repetition unit with different sizes occurs, wherein symbols of less than one repetition unit form a smaller repetition unit, and the smaller repetition unit is located at the end of a slot, or is located after the larger repetition unit, or is located before the larger repetition unit; alternatively, the first and second liquid crystal display panels may be,

In one embodiment of the present invention, the smaller repeating unit is rate-matched with other repeating units by puncturing (punctured).

In one embodiment of the invention, the symbols of the larger repeat unit that exceed the repeat unit size are repeated in a manner that repeats the symbols preceding the larger repeat unit.

In an embodiment of the present invention, when the same long uplink control channel spans a timeslot, one repetition unit cannot span the timeslot. This is because if the repeating unit is spanned over two slots, the discontinuity of the two parts of the repeating unit over the two slots may cause the repeating unit to fail to self-decode.

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

In an embodiment of the present invention, the ue receives, through physical layer signaling and/or higher layer signaling, a parameter of the physical uplink control channel sent by a base station.

Preferably, the size of each repeating unit of the same long uplink control channel in the time domain direction is the same.

Further, in a time slot, the repeating unit maps from both ends of the time domain of the time slot to the middle (meanwhile, the granularity frequency hopping is performed according to the repeating unit, or the frequency hopping is performed according to the aggregated repeating unit), or maps from the symbols allowed at the end of the time domain of the time slot to the front (simultaneously, the granularity frequency hopping is performed according to the repeating unit, or the frequency hopping is performed according to the aggregated repeating unit), or maps from the symbols allowed at the front of the time domain of the time slot to the back (simultaneously, the granularity frequency hopping is performed according to the repeating unit, or the frequency hopping is performed according to the aggregated repeating unit). Wherein, the allowed symbol is configured or predetermined by the base station as the initial symbol of the repeating unit in the time slot.

Further, in a timeslot, when all symbols allowed to be used for the physical uplink control channel are not fully occupied by all repetition units, the repetition unit maps from both ends of a time domain of the timeslot to the middle (simultaneously performs granular frequency hopping according to the repetition unit, or performs frequency hopping according to an aggregated repetition unit), or maps from a symbol allowed at the end of the time domain of the timeslot to the front (simultaneously performs granular frequency hopping according to the repetition unit, or performs frequency hopping according to an aggregated repetition unit), or maps from a symbol allowed at the front of the time domain of the timeslot to the back (simultaneously performs granular frequency hopping according to the repetition unit, or performs frequency hopping according to an aggregated repetition unit). Wherein, the allowed symbol is configured by the base station or predetermined in advance and is used as the initial symbol of the repeating unit in the time slot.

It should be noted that, in the present invention, the mapping method can be used to perform frequency hopping regardless of whether all symbols allowed to be used for the physical uplink control channel are occupied by all the repetition units. When frequency hopping is started from one end of the slot time domain, symbols which are not used by the long uplink control channel are left at one end of the slot time domain, and the symbols which are not used by the long uplink control channel can be used for transmitting data of the uplink shared channel. The reference signal used for data decoding in the uplink shared channel is positioned at the front symbol of the uplink shared channel, if the symbols not used by the long PUCCH are reserved in front of the uplink shared channel, the symbols are closer to the reference signal, and the data decoding is facilitated; if the symbols not used by the long PUCCH are reserved behind the uplink shared channel, the performance of decoding will be degraded, but the system will still work.

Further, each repetition unit of one physical uplink control channel contains a decoded reference signal.

Further, whether the decoded reference signal is contained in the repetition unit is configured or agreed in advance by the base station (e.g., for a long PUCCH with a large load, a partial repetition unit may not send the decoded reference signal to reduce the reference signal overhead). And if the configuration information is configured by the base station, the base station sends the configuration information through physical layer signaling or higher layer signaling. If the base station and the UE agree in advance, the position of a repeating unit for decoding a reference signal needs to be agreed, wherein if the reference signal is contained, the reference signal is located in a previous symbol in the repeating unit.

alternatively, the first and second electrodes may be,

the repeating unit of the physical uplink control channel is repeatedly mapped in a frequency domain within a given time domain range, and when frequency hopping is carried out among the repeating units, the repeating unit does not allow the time domain to be repeatedly mapped within the given frequency domain range within the frequency hopping time domain range.

As shown in fig. 3, the embodiment of the present invention further discloses a base station, which includes a first configuration unit 10 and a first transceiver unit 20, wherein,

a first configuration unit 10, configured to configure a user equipment, or pre-agree with a parameter of a physical uplink control channel with the user equipment, where the parameter includes a size and a number of a repetition unit, and the repetition unit is used for the user equipment to send the physical uplink control channel;

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

Further, the first transceiver unit 20 is further configured to: and receiving the data of the physical uplink control channel according to the parameters of the physical uplink control channel.

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

physical resource blocks of the repeating unit.

In an embodiment of the present invention, for the same long uplink control channel, when symbols in a slot are divided according to a repetition unit and a repetition unit with different sizes occurs, wherein symbols of less than one repetition unit form a smaller repetition unit, and the smaller repetition unit is located at the end of a slot, or is located after the larger repetition unit, or is located before the larger repetition unit; alternatively, the first and second electrodes may be,

In an embodiment of the present invention, a smaller repeating unit performs rate matching with other repeating units in a puncturing (punctured) manner; the symbols of a larger repeat unit that exceed the repeat unit size are in such a way that the symbols preceding the larger repeat unit are repeated.

In an embodiment of the present invention, the first transceiver unit 20 sends the parameter to the ue through physical layer signaling and/or higher layer signaling.

Further, in a time slot, when all symbols allowed to be used for the physical uplink control channel are not occupied by all repeating units, the repeating unit maps from both ends of a time domain of the time slot to the middle (meanwhile, according to the repeating unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repeating unit), or maps from a symbol allowed at the end of the time domain of the time slot to the front (according to the repeating unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repeating unit), or maps from a symbol allowed at the front of the time domain of the time slot to the back (according to the repeating unit, the granularity frequency hopping is performed, or the frequency hopping is performed according to the aggregated repeating unit). Wherein, the allowed symbol is configured or predetermined by the base station as the initial symbol of the repeating unit in the time slot.

Further, whether the decoded reference signal is contained in the repetition unit is configured or agreed in advance by the base station (e.g., for a long PUCCH with a large load, a partial repetition unit may not send the decoded reference signal to reduce the reference signal overhead). And 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 UE agree in advance, it is required to agree on a position of a repetition unit in which a decoding reference signal is not configured, wherein the reference signal is located in a previous symbol within the repetition unit if the reference signal is included.

a repetition unit of a physical uplink control channel, wherein the repetition unit repeatedly maps in the time domain in a given frequency domain range, and the frequency domain repeated mapping is not allowed;

alternatively, the first and second electrodes may be,

As shown in fig. 4, the embodiment of the present invention further discloses a user equipment, which includes a second transceiver unit 30 and a second determining unit 40, wherein,

a second transceiver unit 30, configured to receive a parameter of a physical uplink control channel sent by a base station when the parameter of the uplink control channel is configured by the base station, where the parameter includes a size and a number of a repetition unit, and the repetition unit is used for a user equipment to send the physical uplink control channel;

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

the subband position where the repeating unit is located;

the position of a sub-band where the repeating unit is located, and a Physical Resource Block (PRB) with a specific size in the sub-band;

physical resource blocks of the repeating unit. .

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

Preferably, the size of each repetition unit of the same long uplink control channel in the time domain direction is the same.

alternatively, the first and second electrodes may be,

The present invention is further explained by providing several preferred embodiments, but it should be noted that the preferred embodiments are only for better describing the present invention and should not be construed as unduly limiting the present invention. The following embodiments may exist independently, and technical features in different embodiments may be combined and used in one embodiment. The long PUCCH herein corresponds to a physical uplink control channel (also referred to in terms of transmission characteristics, e.g., uplink control region or uplink control). In the standard definition of NR, PUCCH may also be abbreviated to NR-PUCCH or other abbreviations, but the intention is still physical uplink control channel, and the bearer content is unchanged, so the nomenclature does not affect the implementation of the methods herein.

Preferred embodiment 1

In the present preferred embodiment, a long PUCCH format with 4 symbols as a repetition unit is described:

it is assumed that the long PUCCH uses an uplink slot, and the uplink slot has 14 symbols, where the first symbol is a downlink control symbol, the second symbol is a GAP, the 1 st last symbol is a short PUCCH, and the remaining symbols are symbols used by the long PUCCH.

For a small load, for example, a 1-2 bit long PUCCH, any one of the following configuration modes may be adopted (in the four configuration modes, the number of the repeating units is configured by the base station, and a specific value is determined according to an actual requirement, for example, the size of coverage):

1. the time domain size of the repeating unit is 1 symbol, the frequency domain is 1 PRB, and the repeating is carried out for at least 4 times.

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

3. The time domain size of the repeating unit is 2 symbols, the frequency domain is 1 PRB, and the repeating is carried out for at least 2 times.

4. The time domain size of the repeating unit is 2 symbols, the frequency domain is 2 PRBs, and the repeating is performed at least 2 times.

The four configuration modes can adopt any one of the following frequency hopping modes:

1. and frequency hopping is carried out among the repeating units in sequence. For example, the first repeat unit is at the low frequency end and the second repeat unit is at the high frequency end.

2. N time-domain continuous repeating units are all mapped on the same PRB at the low-frequency end, and the remaining M time-domain continuous repeating units are all mapped on 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 preceding symbol within each repeating unit. Further, the RS code may be optimized by any one of the following methods:

1. and 2 repeated units with the same frequency domain PRB and continuous time domain, wherein the first repeated unit is configured with RS, the second repeated unit deletes the RS (namely, does not configure or contain the RS), and so on. The Resource Elements (REs) from which the RS is deleted in the repetition element are used as the long PUCCH.

2. The PRB with the same frequency domain and 3 continuous repeating units in the time domain, the RS is configured in the 2 nd repeating unit, the RS is deleted in the 1 st and the 3 rd repeating units, and the like. The Resource Elements (REs) from which the RS is deleted in the repetition element are used as the long PUCCH.

3. 4 continuous repeated units of PRB and time domain with the same frequency domain, RS is configured in the 1 st repeated unit and the 4 th repeated unit, and RS is deleted in the 2 nd repeated unit and the 3 rd repeated unit. The Resource Elements (REs) from which the RS is deleted in the repetition element are used as the long PUCCH.

4. The PRB with the same frequency domain and 5 continuous repeating units in the time domain are adopted, the RS is configured in the 1 st repeating unit and the 4 th repeating unit, and the RS is deleted in the 2 nd repeating unit, the 3 rd repeating unit and the 5 th repeating unit. The Resource Elements (REs) from which the RS is deleted in the repetition element are used as the long PUCCH.

In summary, when consecutive repeat units (e.g. 2 or more) occur in the time domain and the frequency domain is the same PRB, some of the repeat units are indicated or agreed not to configure the RS. Or the frequency domain is the same PRB, and when the number of symbols included in a repetition unit occurring in the time domain is large, for example, greater than 3, it is allowed that RSs are included in other symbols except for the first symbol in the repetition unit.

Preferred embodiment 2

In the preferred embodiment, the resource configuration of the long PUCCH should obey the following principle:

the time domain symbols of the long PUCCH meet the coverage requirement as much as possible, and then frequency domain resource expansion is carried out;

for the size of the time domain repetition unit of the long PUCCH, the size should be determined according to the available uplink symbols in the slot actually carried.

For example, the number of symbols in a slot that can be used for the long PUCCH is 10, and 10 symbols satisfy the coverage requirement of the long PUCCH, then the base station may configure the size of the time domain of the repetition unit of the long PUCCH as 5 symbols, and the number of the repetition units is 2; the first repetition unit of this duration PUCCH can be carried on the same PRB and the second repetition unit can be carried on another same PRB to enable frequency hopping between repetition units.

For example, the number of symbols in a slot that can be used for the long PUCCH is 8, and 8 symbols satisfy the coverage requirement of the long PUCCH, then the base station may configure the size of the repetition unit time domain of the long PUCCH as 4 symbols, and the number of the repetition unit time domain is 2; the first repetition unit of this duration PUCCH can be carried on the same PRB and the second repetition unit can be carried on another same PRB to enable frequency hopping between repetition units.

For example, the number of symbols in a slot that can be used for the long PUCCH is 4, and 4 symbols satisfy the coverage requirement of the long PUCCH, then the base station may configure the size of the repetition unit time domain of the long PUCCH as 2 symbols, and the number of the repetition unit time domain is 2; the first repetition unit of this duration PUCCH can be carried on the same PRB and the second repetition unit can be carried on another same PRB to enable frequency hopping between repetition units.

For example, when the number of symbols that can be used for the long PUCCH in one slot exceeds the number of symbols of the actual long PUCCH, even if the available symbols in the frequency domain are the long PUCCH, the long PUCCH can only use 1 PRB or 2 PRB in the frequency domain. In the same time domain, the repetition unit of the same long PUCCH is not allowed to be repeated in the frequency domain.

For example, the number of symbols in a slot that can be used for the long PUCCH is 11, and 11 symbols satisfy the coverage requirement of the long PUCCH, then the base station may configure the size of the repetition unit time domain of the long PUCCH as 5, 6 symbols, and the number of the repetition unit time domain is 2; the first repetition unit of this duration PUCCH contains 5 symbols and can be carried on the same PRB, and the second repetition unit contains 6 symbols and can be carried on another same PRB to implement frequency hopping between repetition units.

For example, the number of symbols in a slot that can be used for the long PUCCH is 9, and the 9 symbols satisfy the coverage requirement of the long PUCCH, then the base station may configure the size of the repetition unit time domain of the long PUCCH as 4, 5 symbols, and the number of the repetition unit time domain is 2; the first repetition unit of this duration PUCCH contains 4 symbols and can be carried on the same PRB, and the second repetition unit contains 5 symbols and can be carried on another same PRB to achieve frequency hopping between the repetition units.

For example, the number of symbols available for the long PUCCH in the slot is 7, and the 7 symbols satisfy the coverage requirement of the long PUCCH, so that the base station may configure the repetition unit time domain size of the long PUCCH as 3, 4 symbols, and the number is 2; the first repetition unit of this duration PUCCH contains 3 symbols and can be carried on the same PRB, and the second repetition unit contains 4 symbols and can be carried on another same PRB to implement frequency hopping between repetition units.

Preferred embodiment 3

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

When the number of symbols which can be used for the uplink long PUCCH in one slot is greater than the number of symbols used by the actual long PUCCH, the position of the long PUCCH is determined in the following manner:

the base station should distinguish the number of symbols actually used by the long PUCCH into at least two repetition units (in practice this principle may not be limited to the above condition, so it may be described that at least 2 repetition units are included in one slot as long PUCCH. The two repetition units are respectively positioned at two ends of a total symbol which can be used by the long PUCCH in the slot, and a symbol which is not used by the long PUCCH is positioned in the middle of the two repetition units; alternatively, two repetition units are mapped continuously from one end of the total symbols usable by the long PUCCH in the slot to the other end.

When one long PUCCH needs multiple slots, for example, 2 slots, and the number of symbols in the first slot that can be used by the long PUCCH is not enough for the number of symbols in the long PUCCH, and the symbols in the second slot that can be used by the long PUCCH are not all used by the long PUCCH, the base station can configure the long PUCCH to have at least 2 repetition units in each slot.

Preferred embodiment 4

In the preferred embodiment, the base station configures the same long PUCCH with the same repetition unit in the frequency domain.

The base station configures the repeating unit of the same long PUCCH not to perform repeated mapping in the frequency domain, that is, in the same time domain range, one repeating unit is mapped in the frequency domain once, and then is not allowed to perform mapping again in the frequency domain (except for frequency hopping because the frequency hopping is in different time domain ranges).

When the long PUCCH is transmitted for the first time, the base station determines the resources as follows: determining the total number of symbols required by a time domain, determining the size of a time domain of a repeating unit, encoding information to be transmitted according to a given code rate k, determining the number of frequency domain resources PRB, determining the number m of repeating times of the repeating unit, and finally, the code rate of PUCCH transmission is k/m, wherein m can be 1, namely, only one repeating unit is correspondingly transmitted without repetition.

Preferred embodiment 5

And the base station configures the size and the number of the repeating units of the long PUCCH and the number of frequency domain resources PRB for the UE. The base station can send the parameters to the UE by physical layer signaling, for example, the parameters are carried by downlink control information (for example, in uplink grant information therein), and the UE receives the parameters sent by the base station and determines the resources of the long PUCCH;

or, the base station carries the parameters through a high-level signaling, for example, an RRC message, and sends the parameters to the UE, and the UE receives the parameters sent by the base station and determines the resources of the long PUCCH;

or, the base station configures a set of time domain sizes of the repeating unit that the UE can use through a high-level signaling, and then indicates a specific time domain size of the repeating unit from the set through a physical layer signaling, and the remaining parameters are still carried through the physical layer signaling.

Preferred embodiment 6

The total number of symbols of the long PUCCH is likely to be different due to different UE locations, which may result in different total symbol lengths of the long PUCCH for different UEs, for example, a cell edge may need more symbols to be the long PUCCH. In order to facilitate uniform resource allocation of the long PUCCH for different UEs and facilitate the remaining symbol reuse, in the preferred embodiment, the resource allocation of the long PUCCH should obey the following principle:

in the slot, the symbols of the long PUCCH are uniformly allocated from a certain symbol at the end of the slot, and here, whether the symbols of the short PUCCH are included or not may implement the convention or signaling indication (including physical layer signaling or higher layer signaling indication). For example, if a UE needs 4 symbols or a repetition unit consisting of 4 symbols, the UE's long PUCCH is allocated from the second last symbol (inclusive) (for example, the last symbol is a short PUCCH, and the long PUCCH does not contain a short PUCCH symbol; or the UE's long PUCCH is allocated from the last symbol (inclusive)). Thus, the remaining symbols in the slot are used for transmitting data of a Physical Uplink Shared Channel (PUSCH), and the base station can configure a PUSCH ending symbol position for the UE in the prior art, so that the PUSCH can be transmitted by using symbols not occupied by the long PUCCH. Namely, the long PUCCH configures symbols from the end of the slot to the front, and the PUSCH configures symbols from the beginning of the slot to the back (prior art), so that the prior art can be reused to fully utilize resources.

Preferred embodiment 7

In a slot, symbols included in the slot are used for downlink control information, GAP, uplink data, short PUCCH, and the like, and the number of symbols occupied by the downlink control information may be 0 to 2 symbols (the upper limit is 2 at present, but may also be variable, for example, 3), GAP (according to a symbol plan at present, it may also be smaller than one symbol), and short PUCCH may also occupy more symbols (for example, when short PUCCH of multiple UEs is time division multiplexed). Therefore, when a slot contains 7 or 14 symbols, the number of symbols left for the long PUCCH varies, and the position also varies. In order to facilitate the design of the long PUCCH, in the preferred embodiment, it is proposed that the base station and the UE agree on (or the base station configures through signaling, semi-static RRC message or physical layer signaling, or a combination of both) a starting symbol position of the long PUCCH (which may be derived from the starting symbol position forward or derived from the starting position backward, or which may be agreed or configured). For example, for a slot of 7 symbols, the long PUCCH always starts from the fourth symbol, and the symbol is calculated backwards; for another example, if the long PUCCH or the repetition unit includes 4 symbols, that is, the 4 th, 5 th, 6 th, and 7 th symbols are symbols of the long PUCCH, at this time, the long PUCCH should be allowed to occupy symbols of the short PUCCH, or there is no short PUCCH in the slot; as another example, for a slot of 14 symbols, the long PUCCH always starts from the fourth symbol, and the symbol is calculated backwards; for another example, if the long PUCCH or the repetition unit includes 4 symbols, that is, the 4 th, 5 th, 6 th, and 7 th symbols are symbols of the long PUCCH, at this time, the long PUCCH should be allowed to occupy symbols of the short PUCCH, or there is no short PUCCH in the slot.

For a long PUCCH, the base station can configure its starting symbol and agree whether to extrapolate the number of symbols of the long PUCCH forward or backward from the starting symbol. The symbol number of the long PUCCH (or the end symbol of the long PUCCH is configured, and a plurality of symbols before the end symbol are occupied by the long PUCCH) is calculated by the symbol before the slot after the start symbol is configured, which is beneficial to avoiding the influence of the symbol number change of the downlink control information on the start symbol of the fixed PUCCH. For example, the long PUCCH is fixed starting from the 4 th symbol in the slot, if the downlink control information in the slot occupies one symbol, the GAP occupies one symbol, and at this time, the 3 rd symbol is not occupied by the long PUCCH, which is wasteful, or when the slot is used for uplink data, the slot becomes complicated (the number of symbols is small, it is difficult to transmit uplink data with a small overhead).

Preferred embodiment 8

FIG. 5 is a diagram of the mapping pattern of a repeating unit composed of 2 symbols in the slot structure of the above line owner; fig. 6 is a schematic diagram of a mapping pattern of a repeating unit composed of 2 symbols in a slot structure which is purely dominant.

As shown in fig. 5 and 6, the long PUCCHs of different UEs are frequency or time or code division multiplexed together. In fig. 5, the repetition unit of the long PUCCH starts estimating the PUCCH symbol from the second last symbol as the start symbol and starts estimating the PUCCH symbol forward within the slot. E.g., UE1, the starting symbol of the long PUCCH is the second to last symbol (within the starting symbol, the base station also needs to indicate or agree from which side the repetition unit is mapped, e.g., the repetition unit of UE1 should be indicated to map from the high band side, e.g., the repetition unit of UE2 should be indicated to map from the low band side), the repetition unit size is 2, the number is 4, and frequency hopping between each repetition unit.

The base station can configure the number of symbols and positions in the slot for the long PUCCH. For example, the number of symbols in a slot that can be used for the long PUCCH is 10 (including the whole slot symbols are all used for the long PUCCH), and is the last (or first) 10 symbols of the uplink transmission portion in the slot, and (yes/no) includes the short PUCCH region.

Further, the base station can configure the number and position of symbols in slots for the long PUCCH, as well as the corresponding frequency domain position. The frequency domain locations can be described as subbands or PRBs. Based on the example of the previous paragraph, the frequency domain description is further added, for example, the frequency domain configuration of the long PUCCH described as the previous paragraph occurs at subband 0. Different numbers and positions of symbols for the long PUCCH are allowed to be configured for different subbands. As another example, the frequency domain configuration of the long PUCCH described as the previous segment occurs in which PRBs.

Obviously, when the number and position of symbols and the frequency domain position are in one slot at the same time, the number and position of the symbols and positions of the long PUCCH corresponding to each slot are allowed to be configured in different frequency domain positions (in a subband or a PRB). For example, in slot, the number of symbols and the position used by the long PUCCH are configured in subband 0 (or a set of PRBs); the number of symbols and positions used for the long PUCCH are configured in subband 1.

Obviously, when the number and position of symbols and the frequency domain position are in one slot at the same time, it is allowed that one long PUCCH is frequency division multiplexed between different frequency domain positions in the slot, or different long PUCCHs in the same frequency domain position are time division multiplexed. For example, in subband 0 (or a group of PRBs), the base station configures one UE with 10 symbols occupied by the long PUCCH, and in subband 1, the long PUCCH allocates 10 symbols to the long PUCCH time division multiplexing of 2 UEs, which occupy 5 symbols respectively, and also allows symbol cross time division. Here, the 10 symbols in subband 0 and subband 1 may be the same symbol.

Within the same size of the repetition unit, the long PUCCHs of different UEs are allowed to be code division multiplexed.

In the present application, technical features in the respective embodiments may be combined and used in one embodiment without conflict. Each example is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

According to the physical uplink control channel configuration method, the base station and the user equipment, the uplink control channel is flexibly and conveniently expanded in the time domain direction through the repeating unit, and the requirements of the NR medium-length uplink control channel needing slot-crossing and large-range load change can be met.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for configuring a Physical Uplink Control Channel (PUCCH) comprises the following steps:

if the base station configures the parameters of the physical uplink control channel, the base station sends the parameters to the user equipment;

the time domain size of each repeating unit of one physical uplink control channel is the same;

or, each of the repeating units of one physical uplink control channel includes 2 different time domain sizes, and the repeating unit different from other time domain sizes is located at the beginning or end of the physical uplink control channel or the time slot;

wherein, the orthogonal frequency division multiplexing symbol contained in one repeating unit is positioned in one time slot.

2. The physical uplink control channel configuration method according to claim 1, wherein the time domain size of the repeating unit includes n orthogonal frequency division multiplexing symbols, or n slots, or n mini slots, where n is a natural number;

3. The physical uplink control channel configuration method according to claim 2, wherein the time domain size of the repeating unit comprises one of: 1, 2, 4, 5, 7, 10 or 11 orthogonal frequency division multiplexing symbols;

4. The method according to claim 1, wherein the parameters further include parameters of the repeating unit in a frequency domain direction, and the parameters in the frequency domain direction are used to indicate a frequency domain position and/or a size of the repeating unit, and include one of:

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

physical resource blocks of the repeating unit.

5. The physical uplink control channel configuration method according to claim 1, wherein the frequency domain size of each of the repeating units of one physical uplink control channel is the same, or the number of frequency domain subcarriers is the same, or the number of physical resource blocks is the same.

6. The physical uplink control channel configuration method according to claim 1, wherein each of the repeating units of one physical uplink control channel can be decoded independently, and information transmitted in one physical uplink control channel can be obtained by decoding.

7. The physical uplink control channel configuration method according to claim 1, wherein the data transmitted by each of the repeating units of one of the physical uplink control channels is the same or different redundancy versions of the same original data after being encoded.

8. The physical uplink control channel configuration method according to claim 1, wherein the base station sends the parameters to the user equipment through physical layer signaling and/or higher layer signaling;

the high layer signaling comprises: transmitting and obtaining the information through a broadcasting system, and transmitting and obtaining the information through a special RRC message of user equipment or a user equipment group;

9. The method of claim 1, wherein the 2 different time domain sizes are:

10. The method of claim 9, wherein the smaller repeating unit is rate matched with other repeating units in a puncturing manner; the symbols of the larger repeat unit that exceed the repeat unit size are repeated in a manner that repeats the symbols preceding the larger repeat unit.

11. The physical uplink control channel configuration method according to claim 1, wherein when one physical uplink control channel hops within a timeslot or across timeslots, hopping is performed according to the granularity of the repeating unit; or frequency hopping according to the aggregated repeating units;

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

12. The physical uplink control channel configuration method according to claim 1, wherein in a timeslot, the repeating unit maps or determines the number of symbols from both ends of a time domain of the timeslot to the middle, or maps or determines the number of symbols from a symbol allowed at the end of the time domain of the timeslot forward, or maps or determines the number of symbols from a symbol allowed at the front of the time domain of the timeslot backward, wherein the allowed symbols are configured by a base station or agreed in advance as a starting symbol of the repeating unit in the timeslot.

13. The physical uplink control channel configuration method according to claim 1, wherein when all symbols allowed to be used for the physical uplink control channel are not fully occupied by all the repeating units in a timeslot, the repeating units map or determine the number of symbols from both ends of a time domain of the timeslot to the middle, or map or determine the number of symbols from a symbol allowed at the end of the time domain of the timeslot to the front, or map or determine the number of symbols from a symbol allowed at the front of the time domain of the timeslot to the back, wherein the allowed symbols are configured by a base station or agreed in advance as starting symbols of the repeating units in the timeslot;

or, for one physical uplink control channel, in a time slot, mapping or determining the number of symbols from the symbols allowed in the time slot backward, and the starting symbol position of the physical uplink control channel in the time slot of the repeating unit is agreed by the base station and the UE or configured by the base station through signaling.

14. The physical uplink control channel configuration method according to claim 1, wherein each of the repetition units of one of the physical uplink control channels contains a decoded reference signal, wherein the reference signal is located in a preceding symbol within a repetition unit.

15. The physical uplink control channel configuration method according to claim 1,

whether the decoded reference signal is contained in the repeating unit is configured by the base station or agreed in advance by the base station and the user equipment;

16. The physical uplink control channel configuration method according to claim 1,

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

a repetition unit of the physical uplink control channel, wherein the repetition unit is repeatedly mapped in a given frequency domain range in a time domain, and the frequency domain repeated mapping is not allowed;

alternatively, the first and second electrodes may be,

a repeating unit of the physical uplink control channel, wherein the repeating unit is repeatedly mapped in a frequency domain in a given time domain range, and the time domain repeated mapping is not allowed;

17. The physical uplink control channel configuration method according to claim 1, wherein when the number of the repeating units in the time slot is one, frequency hopping is performed in the repeating units.

18. The physical uplink control channel configuration method according to claim 1, wherein the base station receives data of a physical uplink control channel according to the parameters of the physical uplink control channel.

19. A method for configuring a Physical Uplink Control Channel (PUCCH) comprises the following steps:

the parameters comprise the time domain size and the number of the repeating units, and the repeating units are used for sending a physical uplink control channel by the user equipment;

20. The physical uplink control channel configuration method according to claim 19, wherein the size of the repeating unit comprises n orthogonal frequency division multiplexing symbols, or n slots, or n mini slots, where n is a natural number;

21. The physical uplink control channel configuration method according to claim 19, wherein the time domain size of the repeating unit comprises one of: 1, 2, 4, 5, 7, 10 or 11 orthogonal frequency division multiplexing symbols;

22. The method according to claim 19, wherein the parameters further include parameters of the repeating unit in a frequency domain direction, and the parameters in the frequency domain direction are used to indicate a frequency domain position and/or a size of the repeating unit, and include one of:

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

physical resource blocks of the repeating unit.

23. The method of claim 19, wherein the size of the frequency domain is the same, or the number of frequency domain subcarriers is the same, or the number of physical resource blocks is the same for each of the repeating units of the same long uplink control channel.

24. The physical uplink control channel configuration method according to claim 19, wherein each of the repeating units of one of the physical uplink control channels can be decoded independently, and information transmitted in one of the physical uplink control channels can be obtained by decoding.

25. The physical uplink control channel configuration method according to claim 19, wherein for one physical uplink control channel, when symbols in one slot are divided by the repetition units and the repetition units of different sizes occur, wherein,

26. The physical uplink control channel configuration method according to claim 25, wherein the smaller repeating unit performs rate matching with other repeating units in a puncturing manner; the symbols of the larger repeat unit that exceed the repeat unit size are repeated in a manner that repeats the symbols preceding the larger repeat unit.

27. The physical uplink control channel configuration method according to claim 19, wherein the data transmitted by each of the repeating units of one of the physical uplink control channels is the same or different redundancy versions of the same original data after being encoded.

28. The physical uplink control channel configuration method according to claim 19, wherein the base station sends the parameter to the ue through physical layer signaling and/or higher layer signaling;

29. The physical uplink control channel configuration method according to claim 19, wherein when one physical uplink control channel hops within a timeslot or across timeslots, hopping is performed according to the granularity of the repetition unit; or frequency hopping according to the aggregated repeating units;

30. The physical uplink control channel configuration method according to claim 29, wherein in a timeslot, the repeating unit maps or determines the number of symbols from both ends of a time domain of the timeslot to the middle, or maps or determines the number of symbols from a symbol allowed at the end of the time domain of the timeslot forward, or maps or determines the number of symbols from a symbol allowed at the front of the time domain of the timeslot backward, wherein the allowed symbols are configured by a base station or agreed in advance as a starting symbol of the repeating unit in the timeslot.

31. The physical uplink control channel configuration method according to claim 29, wherein when all symbols allowed to be used for the physical uplink control channel are not fully occupied by all the repeating units in a timeslot, the repeating unit maps or determines the number of symbols from both ends of a time domain of the timeslot to the middle, or maps or determines the number of symbols from a symbol allowed at the end of the time domain of the timeslot to the front, or maps or determines the number of symbols from a symbol allowed at the front of the time domain of the timeslot to the back, wherein the allowed symbols are configured by a base station or agreed in advance as starting symbols of the repeating units in the timeslot;

32. The physical uplink control channel configuring method according to claim 19,

each of the repeating units of one of the physical uplink control channels contains a decoded reference signal, wherein the reference signal is located in a preceding symbol within the repeating unit.

33. The physical uplink control channel configuring method of claim 19,

whether the repetition unit comprises a decoded reference signal is configured by the base station or agreed in advance by the base station and the user equipment;

34. The physical uplink control channel configuring method according to claim 19,

a repeating unit of the physical uplink control channel, wherein the repeating unit is repeatedly mapped in a given frequency domain range in a time domain, and when frequency hopping is carried out among the repeating units, the repeating unit does not allow frequency domain repeated mapping in the given time domain range in the frequency domain range of the frequency hopping;

alternatively, the first and second electrodes may be,

35. The physical uplink control channel configuration method according to claim 19, wherein when the number of the repeating units in the one time slot is one, frequency hopping is performed in the repeating units.

36. A base station, comprising a first configuration unit and a first transceiver unit, wherein,

the first receiving and sending unit is used for sending the parameters configured by the first configuration unit to the user equipment;

37. The base station of claim 36, wherein the first transceiver unit is further configured to: and receiving the data of the physical uplink control channel according to the parameters of the physical uplink control channel.

38. The base station of claim 36, wherein the size of the repeating unit comprises n orthogonal frequency division multiplexing symbols, or n slots, or n mini-slots, where n is a natural number.

39. The base station according to claim 36, wherein the parameters further include a parameter of the repeating unit in a frequency domain direction, wherein the parameter in the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, and the parameter comprises one of:

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

the position of the sub-band where the repeating unit is located and a physical resource block with a specific size in the sub-band;

physical resource blocks of the repeating unit.

40. A user equipment, comprising a second transceiving unit and a second determining unit, wherein,

a second determining unit, configured to configure a physical uplink control channel according to the parameter received by the second transceiver unit or according to a parameter agreed in advance by the user equipment and the base station;

or, each of the repeating units of one physical uplink control channel includes 2 different time domain sizes, and a repeating unit different from other time domain sizes is located at the beginning or end of the physical uplink control channel or timeslot;

41. The UE of claim 40, wherein the size of the repeating unit comprises n OFDM symbols, or n timeslots, or n mini-slots, where n is a natural number.

42. The UE of claim 40, wherein the parameters further include a parameter of the repeating unit in a frequency domain direction, and wherein the parameter in the frequency domain direction is used to indicate a frequency domain position and/or size of the repeating unit, and the parameter comprises one of:

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

physical resource blocks of the repeating unit.

43. A base station, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor implements the steps of the method for configuring physical uplink control channel according to any one of claims 1 to 18 when executing the program.

44. A user equipment, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor implements the steps in the physical uplink control channel configuration method according to any one of claims 19 to 35 when executing the program.

45. A computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the method for configuring physical uplink control channel according to any one of claims 1 to 18, or which when executed by a processor implements the steps in the method for configuring physical uplink control channel according to any one of claims 19 to 35.