CN110011945B

CN110011945B - PUCCH processing method and device

Info

Publication number: CN110011945B
Application number: CN201910324485.2A
Authority: CN
Inventors: 华虎军
Original assignee: Wuhan Hongxin Technology Development Co Ltd
Current assignee: Wuhan Hongxin Technology Development Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2021-10-29
Anticipated expiration: 2039-04-22
Also published as: CN110011945A

Abstract

The PUCCH processing method and the device thereof provided by the invention acquire PUCCH frequency domain data and AGC factors of the current time slot and transmit according to OFDM symbol sequence or RB sequence; extracting DMRS of format2/3/4 when users of PUCCH format2/3/4 exist in OFDM of PUCCH; extracting frequency domain data of format0/1 and DMRS of format1 from RBs of PUCCH; estimating the DMRS according to format 2/3/4; according to the channel estimation result, performing channel equalization on format2/3/4 according to the RB of the PUCCH; and performing RB level processing on the format0/1 according to the frequency domain data of the format0/1 and the DMRS of the format1, so that the PUCCH processing procedures of 5 PUCCH formats can be simultaneously supported, the processing delay is reduced, and the transmission processing is facilitated.

Description

PUCCH processing method and device

Technical Field

The present invention relates to the field of data communication technologies, and in particular, to a PUCCH processing method and apparatus.

Background

The PUCCH (Physical uplink control channel) of the 5G NR carries uplink control information from the ue to the 5G base station gNB, and five PUCCH formats are defined in the 3GPP protocol.

At present, the receiving process of the PUCCH needs to be performed through steps such as digital front end, channel estimation, AGC factor compensation, channel equalization, signal demodulation, and the like, where a high layer performs user scheduling in a slot (slot) unit, and may schedule PUCCH users of five formats in the same slot. The different positions of the starting RBs scheduled by users and the different starting OFDM symbols all cause the distribution of PUCCH pilot symbols over one slot to be very complicated. The PUCCH estimates the transmission characteristics of the channel by using the pilot signal, and for PUCCH formats format2, format3, and format4, a common processing manner is to start channel estimation processing of a slot after all frequency domain results of the slot after digital front-end processing are received, but this may cause the total processing delay of the receiver to possibly fail to meet the system requirement; for format0/1, since there is a case of user multiplexing, a common processing method is to perform RB-level processing first and then perform user demodulation. Since the input sources processed by the five PUCCH formats are all PUCCH frequency domain data and AGC factors after channel separation of the digital front-end processing result, it is not easy to support the five PUCCH formats at the same time.

Therefore, there is an urgent need for a PUCCH processing scheme capable of simultaneously supporting 5 PUCCH formats.

Disclosure of Invention

In view of this, the present invention provides a PUCCH processing method and apparatus to solve the technical problem that it is difficult for the current PUCCH processing scheme to simultaneously support 5 PUCCH formats.

In order to achieve the purpose, the invention provides the following technical scheme:

an apparatus for PUCCH processing, the apparatus comprising: the system comprises a data acquisition unit, a transmission control unit, a resource de-mapping processing unit, a channel estimation processing unit, an FMT2/3/4 channel equalization processing unit and an FMT0/1RB level processing unit; wherein the content of the first and second substances,

the data acquisition unit is used for acquiring and storing frequency domain data of a PUCCH (physical uplink control channel) and an Automatic Gain Control (AGC) factor on each OFDM symbol of the current time slot;

the transmission control unit is configured to transmit the frequency domain data and the AGC factor of the PUCCH according to the sequence of the OFDM symbols of the PUCCH, and send the frequency domain data and the AGC factor of the PUCCH to the de-resource mapping processing unit;

the de-resource mapping processing unit is configured to, when a PUCCH is included in an OFDM symbol of the PUCCH, extract demodulation reference signals DMRSs for

formats

2, 3, and 4 from frequency domain data of OFDM symbols of

users including formats

2, 3, and 4, and output the DMRSs and AGC factors for

formats

2, 3, and 4 to the channel estimation processing unit;

the channel estimation processing unit is configured to estimate, according to the DMRSs in the

formats

2, 3, and 4, channel transmission characteristics of DMRS positions for the

formats

2, 3, and 4;

the FMT2/3/4 channel equalization processing unit is configured to, after the channel estimation processing of the current slot is completed, perform channel equalization processing on the format2, the format3, and the format4 according to the resource block RB of the PUCCH according to the result of the channel estimation processing of the current slot;

the transmission control unit is further configured to transmit frequency domain data and an AGC factor of the PUCCH according to the order of resource blocks RB of the PUCCH after the channel estimation processing of the current slot is completed;

the de-resource mapping processing unit is further configured to extract frequency domain data of format0 and format1, an AGC factor, and the DMRS of format1 from the RB of the PUCCH;

and an FMT0/1RB level processing unit, configured to perform RB level processing on the format0 and the format1 according to the frequency domain data of the format0 and the format1 and the AGC factor.

Preferably, the data acquisition unit includes:

the receiving processing unit is used for acquiring frequency domain data and Automatic Gain Control (AGC) factors of a Physical Uplink Control Channel (PUCCH) on each OFDM symbol of the current time slot;

and the first storage unit is used for storing the frequency domain data of the PUCCH and the AGC factor acquired by the receiving processing unit.

Preferably, the transmission control unit includes: the device comprises a first control unit, a second storage unit and a second control unit;

the first control unit is configured to receive a read control signal output by the second control unit, and when the second storage unit has a remaining space and data of the first storage unit is ready, sequentially read frequency domain data and an AGC factor of a PUCCH from the first storage unit according to the read control signal and the sequence of the OFDM symbols or the sequence of the RBs, and output the frequency domain data and the AGC factor to the second storage unit;

the second storage unit is used for storing the frequency domain data of the PUCCH and the AGC factors output by the first control unit;

the second control unit is used for outputting the reading control signal to the first control unit; when the storage space of the second storage unit is not empty and the channel estimation processing unit can receive data, the frequency domain data of the OFDM symbols of the users including the format2, the format3 and the format4 and the AGC factor are read from the second storage unit and output to the de-resource mapping processing unit.

Preferably, the second storage unit has a first space parameter, and the first space parameter is used for representing whether the second storage unit has a residual space;

the second storage unit is further specifically configured to:

subtracting 1 from the value of the first spatial parameter after receiving frequency domain data of 1 OFDM symbol or 1RB PUCCH and AGC factors;

after outputting frequency domain data of 1 OFDM symbol or PUCCH of 1RB and AGC factors, adding 1 to the value of the first spatial parameter;

when the first space parameter is equal to 0, indicating to the first control unit that the second storage unit has no remaining space;

when the first space parameter is not equal to 0, indicating the first control unit that the second storage unit has the remaining space.

Preferably, the second storage unit has a second space parameter, and the second space parameter is used for representing whether the storage space of the second storage unit is empty or not;

the second storage unit is further specifically configured to:

adding 1 to the value of the second spatial parameter after receiving the frequency domain data of 1 OFDM symbol or 1RB PUCCH and the AGC factor;

subtracting 1 from the value of the second spatial parameter after outputting the frequency domain data of 1 OFDM symbol or 1RB PUCCH and the AGC factor;

when the second space parameter is equal to 0, indicating the storage space of the second storage unit to be empty to the second control unit;

when the second space parameter is not equal to 0, indicating the second control unit that the storage space of the second storage unit is not empty.

Preferably, the second control unit is specifically configured to:

when the device is powered on or reset and the channel estimation processing unit indicates that data can be received, outputting a first reading control signal to the first control unit; the first reading control signal is used for instructing the first control unit to sequentially read frequency domain data and an AGC factor of a PUCCH from the first storage unit according to the sequence of the OFDM symbols and output the frequency domain data and the AGC factor to the second storage unit;

when the channel estimation processing unit completes channel estimation processing of one time slot and indicates that data cannot be received, outputting a second reading control signal to the first control unit; the second reading control signal is used for instructing the first control unit to sequentially read the frequency domain data and the AGC factor of the PUCCH from the first storage unit according to the order of the RBs, and output the frequency domain data and the AGC factor to the second storage unit.

Preferably, the channel estimation processing unit includes:

an FMT2 channel estimation processing unit, configured to estimate, according to the DMRS in the format2, channel transmission characteristics of a DMRS position for the format 2;

and an FMT3/4 channel estimation processing unit, configured to estimate, according to the DMRSs of the

formats

3 and 4, channel transmission characteristics of DMRS positions for the

formats

3 and 4.

Preferably, the FMT2/3/4 channel equalization processing unit is specifically configured to:

calculating a channel estimation result of a data subcarrier position of each OFDM symbol;

and compensating the distortion of the PUCCH transmission channel by using the channel estimation result of the data subcarrier position.

Preferably, the FMT2 channel estimation processing unit is further configured to generate a first data flag when the channel estimation processing by the FMT2 channel estimation processing unit is completed; the first data flag is used for characterizing the FMT2 channel estimation processing unit receivable data;

the FMT3/4 channel estimation processing unit is further configured to generate a second data flag when the channel estimation process of the FMT3/4 channel estimation processing unit is complete; the second data flag is used to characterize the FMT3/4 channel estimation processing unit as being capable of receiving data.

A PUCCH processing method, the method comprising:

acquiring and storing frequency domain data and Automatic Gain Control (AGC) factors of a Physical Uplink Control Channel (PUCCH) on each OFDM symbol of a current time slot;

transmitting frequency domain data and AGC factors of the PUCCH according to the sequence of OFDM symbols of the PUCCH;

when a user with PUCCH formats of format2, format3 and format4 is included in the OFDM symbol of the PUCCH, extracting demodulation reference signals (DMRS) of the format2, format3 and format4 from frequency domain data of the OFDM symbol of the user with the format2, format3 and format4, respectively;

estimating channel transmission characteristics of DMRS positions for the format2, the format3 and the format4 according to the DMRS of the format2, the format3 and the format 4;

after the channel estimation processing of the current time slot is completed, according to the channel estimation processing result of the current time slot, performing channel equalization processing on the

formats

2, 3 and 4 according to the resource block RB of the PUCCH;

after the channel estimation processing of the current time slot is finished, transmitting the frequency domain data and the AGC factors of the PUCCH according to the sequence of the Resource Blocks (RB) of the PUCCH;

extracting frequency domain data of format0 and format1, an AGC factor and a DMRS of format1 from the RB of the PUCCH;

and performing RB level processing on the format0 and the format1 according to the frequency domain data and the AGC factors of the format0 and the format 1.

It can be seen from the above technical solutions that, in the PUCCH processing method and apparatus provided by the present invention, five kinds of PUCCHs are divided into two categories, format0/1 and format2/3/4, frequency domain data and AGC factors of the PUCCH on each OFDM symbol of each current slot are obtained and stored, and the frequency domain data and AGC factors of the PUCCH are transmitted according to the OFDM symbol sequence or RB sequence of the PUCCH; when the OFDM symbols of the PUCCH comprise users with PUCCH formats format2, format3 and format4, extracting DMRSs of format2, format3 and format 4; then, according to the DMRSs of the

formats

2, 3 and 4, performing channel estimation processing on the

formats

2, 3 and 4; after the channel estimation processing of the current slot is completed, extracting frequency domain data of format0 and format1, an AGC factor and a DMRS of format1 from the RB of the PUCCH; according to the frequency domain data of the

formats

0 and 1 and the DMRS and AGC factors of the format1, RB level processing is carried out on the

formats

0 and 1, and according to the channel estimation processing result of the current time slot, channel equalization processing is carried out on the

formats

2, 3 and 4 according to the resource block RB of the PUCCH, so that the PUCCH processing process capable of simultaneously supporting 5 PUCCH formats is realized, the processing delay is reduced, and the transmission processing is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a PUCCH processing apparatus according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a PUCCH processing apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a PUCCH processing apparatus according to an embodiment of the present invention;

fig. 4 is a flowchart of a PUCCH processing method according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a PUCCH processing scheme according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A Physical Uplink Control Channel (PUCCH) of a 5G (5th-Generation, fifth Generation mobile communication technology) NR (New Radio interface) carries uplink control information from a user equipment to a 5G base station gNB, where a 3GPP protocol defines five PUCCH formats, which are shown in table 1 below:

TABLE 1 PUCCH formats

PUCCH format	Length in OFDM symbols	Number of bits
			0	1–2	≤2
1	4–14	≤2
			2	1–2	>2
3	4–14	>2
			4	4–14	>2

The

formats

0 and 2 are short formats, and occupy 1-2 OFDM (Orthogonal Frequency Division Multiplexing) symbols in a time domain; the

formats

1, 3 and 4 are long formats, and occupy 4-14 OFDM symbols in a time domain.

The number of RBs (Resource Block) for Resource allocation is 1RB for each of format0, format1, and format 4; for format2 and format3, the number of RBs is 1 or more.

In the multiplexing mode, format0 is based on sequence selection; format1, format3 and format4 are time division multiplexing for UCI (Uplink Control information) and DMRS (Demodulation Reference Signal); and format2 is UCI and DMRS frequency division multiplexing.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a PUCCH processing apparatus according to an embodiment of the present invention.

As shown in fig. 1, the PUCCH processing apparatus provided in this embodiment at least includes: a data acquisition unit 10, a transmission control unit 20, a de-resource mapping processing unit 30, a channel estimation processing unit 40, an FMT2/3/4 channel equalization processing unit 50 and an FMT0/1RB level processing unit 60.

The data obtaining unit 10 is configured to obtain and store frequency domain data of a PUCCH and an AGC factor on each OFDM symbol of a current slot.

The time domain data of N receiving antennas in the current timeslot is processed at the uplink front end and subjected to channel separation to obtain PUCCH frequency domain data and AGC factors, which are first stored in the data acquisition unit 10. The current time slot is an uplink time slot, and N is the number of receiving antennas.

In an example, the current slot is a current uplink slot, and the data obtaining unit 10 is configured to obtain and store frequency domain data of a PUCCH and an automatic gain control AGC factor on each OFDM symbol of the current slot.

And the frequency domain data of the PUCCH of the current time slot comprises a demodulation reference signal (DMRS) and a data subcarrier for bearing uplink control information.

A transmission control unit 20, configured to transmit the frequency domain data and the AGC factor of the PUCCH according to the order of the OFDM symbols of the PUCCH, and send the frequency domain data and the AGC factor of the PUCCH to the de-resource mapping processing unit 30.

The transmission control unit 20 is specifically configured to transmit the frequency domain data of the PUCCH and the AGC factor according to the order of the OFDM symbols of the PUCCH, and distribute the frequency domain data of the OFDM symbols of the user including format2, format3, and format4 and the AGC factor to the de-resource mapping processing unit 30 according to the configuration parameters of the user.

When the PUCCH OFDM symbols include users of PUCCH formats format2, format3, and format4, the de-resource mapping processing unit 30 is configured to extract the DMRSs for the

formats

2, 3, and 4 from frequency domain data of the OFDM symbols of the users including the

formats

2, 3, and 4, and output the DMRSs for the

formats

2, 3, and 4 and the AGC factors to the channel estimation processing unit 40.

The de-resource mapping processing unit 30 is specifically configured to extract, according to the configuration parameters of the user, demodulation reference signals DMRSs for the format2, the format3, and the format4 from the OFDM symbol frequency-domain data including the format2, the format3, and the format4 users, respectively, and output the DMRSs and the AGC factor to the channel estimation processing unit 40.

And a channel estimation processing unit 40, configured to estimate, according to the DMRSs in the

formats

2, 3, and 4, channel transmission characteristics of DMRS positions for the

formats

2, 3, and 4.

An FMT2/3/4 channel equalization processing unit 50, configured to perform channel equalization processing for the format2, format3, and format4 according to the resource block RB of the PUCCH according to the result of channel estimation processing of the current slot after the channel estimation processing of the current slot is completed. Wherein, the current time slot is a current uplink time slot.

The transmission control unit 20 is further configured to transmit the frequency domain data of the PUCCH and the AGC factor in order of the resource blocks RB of the PUCCH after the channel estimation processing of the current slot is completed. Wherein, the current time slot is a current uplink time slot.

The de-resource mapping processing unit 30 is further configured to extract frequency domain data of format0 and format1, an AGC factor, and the DMRS of format1 from the RB of the PUCCH.

An FMT0/1RB level processing unit 60, configured to perform RB level processing on the format0 and the format1 according to the frequency domain data of the format0 and the format1 and the AGC factor.

The RB-level processing is that the receiving end performs the processing of format0 and format1 by using a "blind detection" method, that is, it is not necessary to care about the position of the user in the RB and how the multiplexed users are multiplexed.

The PUCCH processing apparatus provided in this embodiment divides five kinds of PUCCH into two types, format0/1 and format2/3/4, acquires and stores frequency domain data and AGC factor of PUCCH of a current slot by using a data acquisition unit, and transmits the frequency domain data and AGC factor of PUCCH according to an OFDM symbol order or RB order of PUCCH by using a transmission control unit; extracting DMRSs of formats 2, 3 and 4 when OFDM symbols of PUCCH comprise users of PUCCH formats 2, 3 and 4 according to configuration parameters of the users by using a de-resource mapping processing unit; extracting frequency domain data of formats 0 and 1 and a DMRS of format1 from the RB of the PUCCH; performing channel estimation processing on the formats 2, 3 and 4 by using a channel estimation processing unit according to the DMRSs of the formats 2, 3 and 4; after the channel estimation processing of one time slot is finished, performing channel equalization processing on formats 2, 3 and 4 according to resource blocks RB of the PUCCH by using an FMT2/3/4 channel equalization processing unit according to the channel estimation processing result of the current time slot; and performing RB level processing on the formats 0 and 1 by using an FMT0/1RB level processing unit according to the frequency domain data of the formats 0 and 1 and the DMRS of the format1, thereby realizing a PUCCH processing process capable of simultaneously supporting 5 PUCCH formats, reducing processing delay and facilitating transmission processing.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a PUCCH processing apparatus according to an embodiment of the present invention.

As shown in fig. 2, the PUCCH processing apparatus provided in this embodiment at least includes: the data acquisition unit 10, the transmission control unit 20, the de-resource mapping processing unit 30, the channel estimation processing unit 40, the FMT2/3/4 channel equalization processing unit 50, and the FMT0/1RB level processing unit 60 in the foregoing embodiments.

Among them, the data acquisition unit 10 may include: a receiving and processing unit 11 and a first storage unit 12.

And the receiving processing unit 11 is configured to obtain frequency domain data of the PUCCH on each OFDM symbol of the current slot and an automatic gain control AGC factor.

Specifically, the receiving processing unit 11 is configured to obtain frequency domain data of PUCCH on each OFDM symbol of the current slot and an automatic gain control AGC factor.

A first storage unit 12, configured to store the frequency domain data of the PUCCH and the AGC factor acquired by the reception processing unit.

The time domain data of the N receiving antennas of the current timeslot is subjected to uplink front-end processing and channel separation to obtain PUCCH frequency domain data and AGC factors, and the PUCCH frequency domain data and the AGC factors are firstly entered into the receiving and processing unit 11, and then the receiving and processing unit 11 stores the PUCCH frequency domain data and the AGC factors in the first storage unit 12.

The first storage unit 12 is specifically configured to buffer PUCCH frequency domain data and an AGC factor of a current slot, and may store the PUCCH frequency domain data and the AGC factor by using a URAM in a DDR or FPGA chip.

The transmission control unit 20 may include: a first control unit 21, a second storage unit 22 and a second control unit 23.

A first control unit 21, configured to receive the read control signal output by the second control unit 23, and when the second storage unit 22 has a remaining space and the first storage unit data is ready, sequentially read frequency domain data of a PUCCH and an AGC factor from the first storage unit 12 according to the read control signal and according to the order of the OFDM symbols or the order of the RBs, and output the frequency domain data and the AGC factor to the second storage unit 22.

It can be seen that the first control unit 21 is mainly used for controlling data reading from the first storage unit 12, wherein the input of the first control unit 21 may include the output data of the first storage unit 12 and the read control signal output by the second control unit 23. In addition, the input of the first control unit 21 may further include an indication signal output by the second storage unit 22 for indicating whether there is remaining space in the second storage unit 22. The first control unit 21 can read data from the first memory unit 12 if and only if there is room left in the second memory unit 22.

In an example, the data obtaining unit 10 may further include: an output control unit for outputting a data ready indication signal to the transmission control unit 20 according to the frequency domain data of the PUCCH and the amount of data stored by the AGC factor in the first storage unit 12.

Wherein, each time the first storage unit 12 completes the storage of the frequency domain data of the PUCCH and the AGC factor on one OFDM symbol, the output control unit outputs a data ready indication signal to the transmission control unit 20;

the first storage unit 12 may support storage of consecutive uplink slot PUCCH frequency domain data and AGC factors.

A second storage unit 22, configured to store the frequency domain data of the PUCCH and the AGC factor output by the first control unit 21.

A second control unit 23 for outputting the read control signal to the first control unit 21; when the storage space of the second storage unit 22 is not empty and the channel estimation processing unit 40 can receive data, the frequency domain data of the PUCCH of the OFDM symbol of the user including format2, format3, and format4 and the AGC factor are read from the second storage unit 22 and output to the de-resource mapping processing unit 30.

The second control unit 23 outputs a read control signal for indicating whether the first control unit 21 reads the first storage unit 12 in the OFDM symbol order or the first storage unit 12 in the RB order.

In an example, the second storage unit 22 may have a first spatial parameter size1, the first spatial parameter size1 being used to characterize the second storage unit 22 whether there is remaining space; wherein an initial value of the first spatial parameter size1 is equal to 2, that is, the frequency domain data and the AGC factor of the PUCCH of two OFDM symbols or 2 RBs can be ping-pong buffered. Of course, the initial value of the first spatial parameter size1 may also be greater than 2, and may be flexibly set according to the requirement.

Correspondingly, in this example, the second storage unit 22 is further specifically configured to:

subtracting 1 from the value of the first spatial parameter size1 after receiving frequency domain data of 1 OFDM symbol or 1RB PUCCH and AGC factors;

adding 1 to the value of the first spatial parameter size1 after outputting the frequency domain data of 1 OFDM symbol or 1RB PUCCH and the AGC factor;

when the first space parameter size1 is equal to 0, indicating to the first control unit 21 that the second storage unit 22 has no space remaining;

when the first spatial parameter size1 is not equal to 0, it indicates to the first control unit 21 that there is room remaining in the second storage unit 22.

The second storage unit 22 may further have a second spatial parameter size2, where the second spatial parameter size2 is used to characterize whether the storage space of the second storage unit 22 is empty; wherein the initial value of the second spatial parameter size2 is equal to 0.

Correspondingly, the second storage unit 22 is further specifically configured to:

adding 1 to the value of the second spatial parameter size2 after receiving frequency domain data of 1 OFDM symbol or 1RB PUCCH and AGC factor;

subtracting 1 from the value of the second spatial parameter size2 after outputting the frequency domain data of 1 OFDM symbol or 1RB PUCCH and AGC factor;

when the second spatial parameter size2 is equal to 0, indicating to the second control unit 23 that the storage space of the second storage unit 22 is empty;

when the second spatial parameter size2 is not equal to 0, indicating to the second control unit 23 that the storage space of the second storage unit 22 is not empty.

The second storage unit 22 may buffer and store PUCCH frequency domain data of 2 RBs or 2 OFDM symbols and an AGC factor in a ping-pong manner.

In an example, for the same OFDM symbol, according to the configuration parameters of the user, including format2 and format3 or format4, it is required to wait for completion of distribution of format2 and format3 or format4 on the symbol, and then perform the minus 1 processing on the value size2 of the second spatial parameter;

for a user RB containing format0 or format1, the FMT0/1RB level processing and the FMT2/3/4 channel equalization processing are all completed, and the value size2 of the second spatial parameter can perform the minus 1 processing.

After the system is powered on, the system is reset, or the level of the reading control signal output by the second control unit 23 to the first control unit 21 is switched, the first spatial parameter size1 of the second storage unit 22 is 2, and the second spatial parameter size2 is 0.

The second control unit 23 is specifically configured to:

when the device is powered on or reset and the channel estimation processing unit indicates that data can be received, outputting a first read control signal to the first control unit 21; the first reading control signal is configured to instruct the first control unit 21 to sequentially read frequency domain data and an AGC factor of a PUCCH from the first storage unit 12 according to the order of the OFDM symbols, and output the frequency domain data and the AGC factor to the second storage unit 22.

When the channel estimation processing unit 40 completes the channel estimation processing for one slot and the channel estimation processing unit indicates that data cannot be received, outputting a second read control signal to the first control unit 21; the second read control signal is used to instruct the first control unit 21 to sequentially read the frequency domain data of the PUCCH and the AGC factor from the first storage unit 12 in the order of the RBs, and output the frequency domain data and the AGC factor to the second storage unit 22.

It can be seen that the second control unit 23 is mainly used for controlling data reading of the second storage unit 22, and the input of the second control unit 23 may include data read from the second storage unit 22, and may also include an indication signal output by the second storage unit, such as the second space parameter size2, for indicating whether the storage space of the second storage unit 22 is empty.

When the read control signal output by the second control unit 23 instructs to read the first storage unit 12 in the OFDM symbol order, PUCCH frequency domain data and AGC factors for one symbol (i.e., 12 × N _ PRB subcarriers, one OFDM symbol, N receiving antennas) are read from the first storage unit 12 in the order of OFDM symbols in turn and stored in the second storage unit 22. Wherein, N _ PRB is the number of RBs occupied by PUCCH in the frequency domain.

When the read control signal output by the second control unit 23 instructs to read the first storage unit 12 in the RB order, PUCCH frequency domain data and AGC factors of one RB (i.e., 12 subcarriers, 14 OFDM symbols, N receiving antennas) are read from the first storage unit 12 and stored in the second storage unit 22 in the order of RBs in turn.

In an example, the second storage unit 22 may be used to ping-pong buffer the PUCCH frequency domain data and the AGC factor read in the OFDM symbol order or the RB order, the input of the second storage unit 22 may include the PUCCH frequency domain data and the AGC factor output by the first control unit 21, the read control signal output by the second control unit 23 to the first control unit 21, and the read control signal output by the second control unit 23 to the second storage unit 22.

When the device is powered on or reset, the second control unit 23 outputs a reading control signal to the first control unit 21 to instruct the first control unit 21 to read the first storage unit 12 according to the OFDM symbol sequence by default; when the channel estimation processing unit 40 completes the channel estimation processing of one slot, the read control signal output by the second control unit 23 to the first control unit 21 instructs the first control unit 21 to read the first storage unit 12 in the RB order.

The de-resource mapping processing unit 30 may complete the extraction of the DMRS receiving information and the frequency domain data of the PUCCHs format1, format2, format3, and format4, and complete the extraction of the frequency domain data of format0, where the DMRS information extracted by format2, format3, and format4 is used for performing channel estimation processing of format2, format3, and format4, respectively; the frequency domain data extracted by the

formats

2, 3 and 4 are output to the FMT2/3/4 channel equalization processing unit for equalization processing, and the frequency domain data extracted by the format0 and the DMRS information and frequency domain data extracted by the format1 are output to the format0/1RB level processing unit for RB level processing.

The channel estimation processing unit 40 in this embodiment may include: an FMT2 channel estimation processing unit 41 and an FMT3/4 channel estimation processing unit 42.

And an FMT2 channel estimation processing unit 41, configured to estimate, according to the DMRS in the format2, channel transmission characteristics of DMRS positions for the format2, and calculate channel estimates of DMRS positions of a PUCCH format2 user.

And an FMT3/4 channel estimation processing unit 42, configured to estimate, according to the DMRSs of the

formats

3 and 4, channel transmission characteristics of DMRS positions for the

formats

3 and 4, and calculate channel estimates of the DMRS positions of the PUCCH formats 3 and 4 users.

Wherein, when both the FMT2 channel estimation processing unit 41 and the FMT3/4 channel estimation processing unit 42 can receive data, the second control unit 23 reads data of 1 symbol or 1RB from the second storage unit 22 and outputs to the de-resource mapping processing unit 30.

The FMT2 channel estimation processing unit 41 is further configured to generate a first data flag when the channel estimation processing by the FMT2 channel estimation processing unit 41 is completed; the first data flag is used to characterize the FMT2 channel estimation processing unit 41 receivable data. The first data flag may include a channel estimation completion flag output by the FMT2 channel estimation processing unit 41 and a receivable data flag.

The FMT3/4 channel estimation processing unit 42 is further configured to generate a second data flag when the channel estimation process of the FMT3/4 channel estimation processing unit 42 is complete; the second data flag is used to characterize the FMT3/4 channel estimation processing unit 42 as being able to receive data. The second data flag may include a channel estimation complete flag output by the FMT3/4 channel estimation processing unit 42 and a receivable data flag.

That is, the channel estimation processing unit is further configured to generate a receivable data indication, wherein the FMT3/4 channel estimation processing unit is configured to receive the data indication and the FMT2 channel estimation processing unit is configured to receive the data indication.

In an example, the channel estimation processing unit 40 may further include: a DMRS channel estimation storage unit and a channel estimation control unit;

a DMRS channel estimation storage unit, which is used for storing the channel transmission characteristic estimation values of the format2 and FMT3/4DMRS positions;

a channel estimation control unit for outputting an indication whether the channel estimation processing unit 40 can receive data to the transmission control unit 20, and for outputting one-slot FMT2 and FMT3/4 channel estimation processing completion indications to the FMT2/3/4 channel equalization processing unit 50; for receiving indications of channel equalization processing output by the FMT2/3/4 channel equalization processing unit 50.

Further, the channel estimation control unit outputs to the transmission control unit 20 whether or not the receivable data indication includes a receivable data indication output from the FMT2 and the FMT3/4 channel estimation processing unit;

the channel equalization processing indication flag output by the FMT2/3/4 channel equalization processing unit 50 indicates that equalization processing is being performed, the channel estimation processing unit 40 outputs to the transmission control unit 20 that neither the FMT2 channel estimation processing unit 41 nor the FMT3/4 channel estimation processing unit 42 can receive data.

In one example, the FMT2/3/4 channel equalization processing unit 50 is specifically configured to: calculating a channel estimation result of a data subcarrier position of each OFDM symbol; and compensating the distortion of the PUCCH transmission channel by using the channel estimation result of the data subcarrier position.

The FMT2/3/4 channel equalization processing unit 50 may calculate a channel estimation of a data subcarrier position of each OFDM symbol, and compensate distortion caused by non-ideal of a transmission channel using a channel estimation result, which is input as a channel estimation matrix of DMRS positions of PUCCH formats 2, formats 3, and formats 4 and frequency domain data extracted for formats 2, formats 3, and formats 4, and an equalization calculation result is stored in situ. Wherein, the FMT2/3/4 channel equalization processing unit 50 obtains the data sub-carriers from the de-resource mapping processing unit 30.

And the FMT0/1RB level processing unit 60 is used for carrying out RB level processing on the format0 and the format 1.

After the Format2/3/4 channel equalization processing unit 50 completes the equalization processing, it may output a corresponding completion flag and a receivable data flag; the FMT0/1RB level processing unit 60 may also output a corresponding completion flag and a receivable data flag after completing the RB level processing.

In one example, the FMT2/3/4 channel equalization processing unit 50 may further include:

and a data subcarrier channel estimation processing unit, configured to calculate, according to the channel estimation results of the DMRS positions of the format2, the format3, and the format4, a channel estimation result of a PUCCH data subcarrier position of each OFDM symbol in each RB in the order of RBs.

And when the channel estimation result of the PUCCH data subcarrier position of each OFDM symbol in each RB is calculated according to the channel estimation result of the DMRS position, users are not distinguished any more.

And the equalization processing unit is used for compensating the distortion of the data subcarrier of the PUCCH on the RB by using the channel estimation result of the data subcarrier position and the data subcarrier.

And the equalization result storage unit is used for storing the data subcarrier distortion compensation result, namely storing the equalization result.

In another example, the FMT2/3/4 channel equalization processing unit 50 is further configured to:

receiving one time slot FMT2 and FMT3/4 channel estimation process completion indications output by the channel estimation processing unit 40; the channel estimation is finished in one time slot FMT2 and FMT3/4, and an indication signal of the equalization processing is output to the channel estimation processing unit 40;

preferably, the device is powered on or reset or the channel equalization processing is completed in one time slot FMT2/3/4, and an equalization processing completion indication signal is output to the channel estimation processing unit 40;

preferably, the RB level processing of FMT0/1 and the FMT2/3/4 channel equalization processing are in a parallel processing relationship.

The PUCCH processing apparatus provided in this embodiment acquires frequency domain data and AGC factor of a PUCCH of a current slot by using a reception processing unit, stores the frequency domain data and AGC factor of the PUCCH acquired by the reception processing unit by using a first storage unit, realizes transmission control of the frequency domain data and AGC factor of the PUCCH by using a first control unit, a second storage unit, and a second control unit together, realizes channel estimation processing of

formats

2, 3, and 4 in parallel by using an FMT2 channel estimation processing unit and an FMT3/4 channel estimation processing unit, and finally performs channel equalization processing on

formats

2, 3, and 4 after the channel estimation processing is completed by using an FMT2/3/4 channel equalization processing unit; and performing RB level processing on the format0 and the format1 by using an FMT0/1RB level processing unit according to the frequency domain data of the format0 and the format1 and the DMRS of the format1, thereby realizing the PUCCH processing process capable of simultaneously supporting 5 PUCCH formats, enriching the control logic of the PUCCH processing process, reducing the processing delay and facilitating the transmission processing.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating another structure of a PUCCH processing apparatus according to an embodiment of the present invention.

As shown in fig. 3, the PUCCH processing apparatus provided in this embodiment may further include, in addition to the data acquisition unit 10, the transmission control unit 20, the de-resource mapping processing unit 30, the channel estimation processing unit 40, the FMT2/3/4 channel equalization processing unit 50, and the FMT0/1RB level processing unit 60 of the foregoing embodiments: an FMT2/3/4 demodulation and descrambling processing unit 71, an FMT2/3/4 de-rate matching processing unit 72, an FMT2/3/4 decoding processing unit 73, an ACK/CSI separation processing unit 74, an FMT0/1 user level processing unit 81, an ACK/NACK/SR decision processing unit 82, a report processing unit 91, an MAC unit 92 and a PUCCH slot parameter configuration unit 93.

After the FMT2/3/4 channel equalization processing unit 50 finishes processing, the equalization results of all users in one slot are stored in situ, and the FMT2/3/4 demodulation and descrambling processing unit 71 performs subsequent processing according to the equalization results read and stored by the users. The Combining result of MRC (maximum Ratio Combining) output from the FMT0/1RB level processing unit 60 is output to the FMT0/1 user level processing unit 81 and is subjected to subsequent processing.

The FMT2/3/4 demodulation and descrambling processing unit 71 is configured to perform demodulation and descrambling processing on the output result of the FMT2/3/4 channel equalization processing unit 50 (including that the FMT3 and FMT4 users need to perform de-precoding processing); the FMT2/3/4 de-rate matching processing unit 72 is used for performing de-rate matching processing on the output result of the FMT2/3/4 demodulation descrambling processing unit 71; the FMT2/3/4 decoding processing unit 73 is used for decoding the output result of the FMT2/3/4 de-rate matching processing unit 72; the ACK/CSI separation processing unit 74 is configured to perform ACK/CSI separation processing on the output result of the FMT2/3/4 decoding processing unit 73. Ack (acknowledgement) is an acknowledgement message, and csi (channel States information) is channel state information.

The FMT0/1 user level processing unit 81 is used for carrying out FMT0/1 user level processing on the output result of the FMT0/1RB level processing unit 60; the ACK/NACK/SR decision processing unit 82 is configured to perform ACK/NACK/SR decision processing on the output result of the FMT0/1 user-level processing unit 81. NACK (Negative-acknowledgement) is a Negative acknowledgement message, and sr (scheduling request) is an uplink scheduling request.

The reporting processing unit 91 is configured to report the output result of the ACK/NACK/SR decision processing unit 82 and the output result of the ACK/CSI separation processing unit 74 to the MAC unit 92; the MAC unit 92 sends the report result to the MAC layer.

The PUCCH slot parameter configuring unit 93 is configured to configure a slot parameter of the PUCCH, and specifically is configured to configure configuration information of a high-level PUCCH in a current slot, where the high-level PUCCH scheduling configuration in the current slot includes a configuration parameter at a format2, a format3, and a format4 user level and a configuration parameter at a format0 and a format 1RB level.

Correspondingly, the second control unit 23 is specifically configured to output the read control signal to the first control unit 21; when the PUCCH slot parameter configuration unit 93 completes current slot parameter configuration, the storage space of the second storage unit 22 is not empty, and the channel estimation processing unit 40 can receive data, the frequency domain data and the AGC factor of the OFDM symbol of the user including format2, format3, and format4 are read from the second storage unit 22 according to the configuration parameters of the user, and are output to the de-resource mapping processing unit 30.

The FMT2/3/4 demodulation and descrambling processing unit 71, the FMT2/3/4 rate de-matching processing unit 72, the FMT2/3/4 decoding processing unit 73, the ACK/CSI separation processing unit 74, the FMT0/1 user-level processing unit 81, the ACK/NACK/SR decision processing unit 82, the report processing unit 91, and the MAC layer 92 may all be implemented according to the existing LTE 3GPP protocol, and are not described herein again.

In an example, for the same OFDM symbol, according to configuration parameters of a user, including format2 and format3 or format4, when the PUCCH slot parameter configuration unit 93 completes current slot parameter configuration and the storage space of the second storage unit 22 is not empty, if the data that can be received by the channel estimation processing unit 40 indicates that both the FMT3/4 channel estimation processing unit 42 and the FMT2 channel estimation processing unit 41 can receive data, the frequency domain data and the AGC factor of the symbol are respectively distributed to the de-resource mapping processing unit 30, and the de-resource mapping processing unit 30 performs de-resource mapping processing of format2 and format3/4 according to the configuration parameters of the user.

In another example, according to the configuration parameters of the user, for format2, format3, and format4 on the same OFDM symbol, if none of the three PUCCH formats on the symbol exists, the OFDM symbol PUCCH frequency domain data and the AGC factor are not output to the de-resource mapping processing unit 30.

Wherein, the second control unit 23 is further configured to, after the channel estimation processing of the uplink timeslot is completed, after the channel estimation processing unit 40 indicates that data is not receivable and the storage space of the second storage unit 22 is not empty, distribute the frequency domain data and the AGC factor of each RB to the FMT2/3/4 channel equalization processing unit 50 for equalization processing; and distributing the frequency domain data and the AGC factors stored in the RBs of the format0 and format1 users to an FMT0/1RB level processing unit 60 for RB level processing according to the configuration parameters of the format0 and format 1. The RB is 14 OFDM symbols occupying 12 subcarriers in the frequency domain and one slot in the time domain.

The PUCCH processing apparatus provided in this embodiment not only implements a PUCCH processing procedure capable of supporting 5 PUCCH formats simultaneously, but also supplements an FMT2/3/4 demodulation and descrambling processing unit, an FMT2/3/4 rate de-matching processing unit, an FMT2/3/4 decoding processing unit, an ACK/CSI separation processing unit, an FMT0/1 user-level processing unit, an ACK/NACK/SR decision processing unit, a reporting processing unit, and an MAC layer, which perform subsequent processing, on the basis of a data acquisition unit, a transmission control unit, a de-resource mapping processing unit, a channel estimation processing unit, an FMT2/3/4 channel equalization processing unit, and an FMT0/1 RB-level processing unit, thereby further improving the entire PUCCH processing scheme, reducing processing latency, and facilitating transmission processing.

The embodiment of the present invention further provides a PUCCH processing method, which is applicable to the PUCCH processing apparatus provided in the embodiment of the present invention, and technical contents of the PUCCH processing method described below may be referred to in correspondence with and in correspondence with technical contents of the PUCCH processing apparatus described above.

Referring to fig. 4, fig. 4 is a flowchart of a PUCCH processing method according to an embodiment of the present invention.

As shown in fig. 4, the PUCCH processing method provided in this embodiment may include the following steps:

s110: and acquiring and storing frequency domain data of a PUCCH and an Automatic Gain Control (AGC) factor on each OFDM symbol of the current time slot.

Stored here may be frequency domain data and AGC factors for all receive antennas of the PUCCH of the uplink slot.

S120: and transmitting the frequency domain data and the AGC factors of the PUCCH according to the sequence of the OFDM symbols of the PUCCH.

For PUCCH Format2, Format3, and Format4, the frequency domain data and AGC factors for all receive antennas of PUCCH may be transmitted in OFDM symbol order.

S130: when the OFDM symbols of the PUCCH include users with PUCCH formats format2, format3 and format4, the DMRS of format2, format3 and format4 are extracted.

Specifically, when a PUCCH OFDM symbol includes PUCCH format2, format3, and format4 users, demodulation reference signals DMRSs for format2, format3, and format4 are extracted from frequency domain data of the OFDM symbol of the user including format2, format3, and format4, respectively.

S140: according to the DMRSs of the

formats

2, 3 and 4, estimating the channel transmission characteristics of the DMRS positions aiming at the

formats

2, 3 and 4, and performing channel equalization processing according to the resource blocks RB of the PUCCH.

After the channel estimation processing of the current slot is completed, according to the channel estimation processing result of the current slot, performing channel equalization processing on the

formats

2, 3 and 4 according to the resource block RB of the PUCCH

According to the high-level configuration parameters of the current time slot, for the frequency domain data of all receiving antennas of the PUCCH transmitted according to the OFDM symbol sequence, if the OFDM symbol has users of PUCCH formats 2, 3 and 4, the DMRS signal of the user on the OFDM symbol is extracted for channel estimation processing, otherwise, the channel estimation processing of the DMRS on the symbol is not performed. The channel estimation of the format3 and the format4 on the same OFDM symbol is processed in series, and the channel estimation of the format2 and the channel estimation of the format3 (or the format2 and the format 4) are processed in parallel.

After the channel estimation processing of the DMRSs of all PUCCH formats 2, 3, and 4 in one slot is completed, the channel equalization processing of

formats

2, 3, and 4 is started.

S150: and after the channel estimation processing of the current time slot is finished, transmitting the frequency domain data and the AGC factors of the PUCCH according to the sequence of the Resource Blocks (RB) of the PUCCH.

Specifically, the frequency domain data and AGC factors for all the receive antennas of the PUCCH are transmitted in RB order.

S160: and extracting frequency domain data of format0 and format1, an AGC factor and the DMRS of the format1 from the RB of the PUCCH.

S170: and performing RB level processing on the format0 and the format1 according to the frequency domain data and the AGC factors of the format0 and the format 1.

And performing RB level processing on PUCCH format0 and format1 according to RB transmission.

RB-level processing for format0 and format1 and channel equalization processing for format2, format3, and format4 may be performed in parallel.

The basic principle of the PUCCH processing scheme of the present invention may be as shown in fig. 5. In fig. 5, 500us represents the time duration of the next slot in the time domain at a 30khz subcarrier spacing configuration; the FMT2 channel estimation process represents a channel estimation process procedure of format 2; FMT3/4 channel estimation process represents the channel estimation process of format3 and format 4; FMT2/3/4 channel equalization processing shows the channel equalization processing procedures of format2, format3 and format 4; FMT2/3/4 bit level decoding process represents the bit level decoding process of format2, format3 and format 4; FMT0 processing indicates the processing of format 0; the FMT1 process represents the processing of format 1. Wherein, slot P represents a current uplink slot P, and slot P +1 represents the P +1 th slot when the uplink slot is continuous.

The PUCCH processing method provided in this embodiment obtains and stores frequency domain data and AGC factors of a PUCCH of a current slot, and transmits the frequency domain data and the AGC factors of the PUCCH according to an OFDM symbol sequence or an RB sequence of the PUCCH; when the OFDM symbols of the PUCCH comprise PUCCH formats format2, format3 and format4, extracting frequency domain data and DMRS of the

formats

2, 3 and 4; extracting frequency domain data of format0 and format1 and DMRS of format1 from RB of PUCCH; then, according to the DMRSs of the

formats

2, 3 and 4, performing channel estimation processing and channel equalization processing on the

formats

2, 3 and 4; according to the frequency domain data of the format0 and the format1 and the DMRS of the format1, RB level processing is carried out on the format0 and the format1, so that a PUCCH processing process capable of simultaneously supporting 5 PUCCH formats is realized, processing delay is reduced, and transmission processing is facilitated.

In another embodiment, the PUCCH processing method provided by the present invention is implemented based on the aforementioned PUCCH processing apparatus, and in this embodiment, step S110 may include:

a1, acquiring the frequency domain data of the PUCCH of the current slot and the automatic gain control AGC factor by using the receiving processing unit 11.

And A2, storing the frequency domain data of the PUCCH acquired by the receiving processing unit and the AGC factor by using the first storage unit 12.

Wherein, the step S120 may include:

b1, using first control section 21 to receive the read control signal outputted from second control section 23, and when there is a remaining space in second storage section 22, sequentially reading the frequency domain data of PUCCH and AGC factor from first storage section 12 in the order of OFDM symbols according to the read control signal, and outputting the frequency domain data and AGC factor to second storage section 22.

B2, second storage section 22 stores the frequency domain data of PUCCH outputted by first control section 21 and the AGC factor.

B3, outputting the read control signal to the first control unit 21 by a second control unit 23; when the storage space of the second storage unit 22 is not empty and the channel estimation processing unit 40 can receive data, the frequency domain data and the AGC factor of the PUCCH of 1 OFDM symbol are read from the second storage unit 22 and output to the de-resource mapping processing unit 30.

Wherein, the step S130 may include: when the PUCCH OFDM symbols include PUCCH formats format2, format3, and format4, the de-resource mapping processing unit 30 extracts demodulation reference signals DMRSs for the

formats

2, 3, and 4.

Step S140 may include:

c1, performing channel estimation processing on the format2 according to the DMRS of the format2 by using an FMT2 channel estimation processing unit 41;

and C2, performing channel estimation processing on the format3 and the format4 according to the DMRS of the format3 and the format4 by using an FMT3/4 channel estimation processing unit 42.

And C3, performing channel equalization processing on the format2, the format3 and the format4 by using an FMT2/3/4 channel equalization processing unit after the channel estimation processing is completed.

Wherein, the step S150 may include:

d1, using first control unit 21 to receive the read control signal outputted from second control unit 23, and when there is a remaining space in second storage unit 22, sequentially reading the frequency domain data of PUCCH and AGC factor from first storage unit 12 according to the RB order based on the read control signal, and outputting the frequency domain data and AGC factor to second storage unit 22.

D2, second storage section 22 stores the frequency domain data of PUCCH outputted from first control section 21 and the AGC factor.

D3, outputting the read control signal to the first control unit 21 by a second control unit 23; when the storage space of the second storage unit 22 is not empty and the channel estimation processing unit 40 can receive data, the frequency domain data and the AGC factor of the PUCCH of 1RB are read from the second storage unit 22 and output to the de-resource mapping processing unit 30.

Step S160 may include: and extracting frequency domain data of format0 and format1 and the DMRS of format1 from the RB of the PUCCH by using a de-resource mapping processing unit 30.

Step S170 may include: and performing RB-level processing on the format0 and the format1 according to the frequency-domain data of the format0 and the format1 and the DMRS of the format1 by using an FMT0/1 RB-level processing unit 60.

The FMT0/1 RB-level processing unit 60 may perform RB-level processing on the format0 and the format1 according to the configuration parameters of the format0/1, the frequency-domain data of the format0 and the format1, and the DMRS of the format 1.

In addition, a channel estimation result of a PUCCH data subcarrier position of each OFDM symbol in each RB may also be calculated according to the DMRS position channel estimation processing results of format2, format3, and format 4; and compensating the distortion of the PUCCH transmission channel on the RB by using the channel estimation result of the data subcarrier position and the data subcarrier.

The PUCCH processing method provided in this embodiment divides five PUCCH types into two types, format0/1 and format2/3/4, acquires frequency domain data and AGC factor of PUCCH in the current slot by using the receiving processing unit, stores the frequency domain data and AGC factor of PUCCH acquired by using the receiving processing unit, realizes transmission control of the frequency domain data and AGC factor of PUCCH by using the first control unit, the second storage unit and the second control unit together, realizes channel estimation processing of format2, format3 and format4 by using the FMT2 channel estimation processing unit and the FMT3/4 channel estimation processing unit in parallel, after the channel estimation processing of one time slot is finished, performing channel equalization processing on

formats

2, 3 and 4 according to resource blocks RB of the PUCCH by using an FMT2/3/4 channel equalization processing unit according to the channel estimation processing result of the current time slot; the FMT0/1RB level processing unit is used for carrying out RB level processing on format0 and format1 according to frequency domain data and AGC factors of format0 and format1, so that a PUCCH processing process capable of simultaneously supporting 5 PUCCH formats is realized, control logic of the PUCCH processing process is enriched, processing delay is reduced, and transmission processing is facilitated.

Finally, it is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented in the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. With this understanding in mind, the technical solutions of the present application may be embodied in whole or in part in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments of the present application.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific embodiments and the application range may be changed. In view of the above, the description should not be taken as limiting the application.

Claims

1. An apparatus for PUCCH processing, the apparatus comprising: the system comprises a data acquisition unit, a transmission control unit, a resource de-mapping processing unit, a channel estimation processing unit, an FMT2/3/4 channel equalization processing unit and an FMT0/1RB level processing unit; wherein the content of the first and second substances,

the de-resource mapping processing unit is configured to, when a user with PUCCH formats format2, format3, and format4 is included in the OFDM symbol of the PUCCH, extract the demodulation reference signals DMRSs for the format2, format3, and format4 from frequency domain data of the OFDM symbol of the user with the format2, format3, and format4, respectively, and output the DMRSs and AGC factors for the format2, format3, and format4 to the channel estimation processing unit;

the channel estimation processing unit is configured to estimate, according to the DMRSs in the formats 2, 3, and 4, channel transmission characteristics of DMRS positions for the formats 2, 3, and 4;

and an FMT0/1RB level processing unit, configured to perform RB level processing on the format0 and the format1 according to the frequency domain data and the AGC factor of the format0 and the format1 and the DMRS of the format 1.

2. The apparatus of claim 1, wherein the data acquisition unit comprises:

3. The apparatus of claim 2, wherein the transmission control unit comprises: the device comprises a first control unit, a second storage unit and a second control unit;

4. The apparatus of claim 3, wherein the second storage unit has a first space parameter, the first space parameter being indicative of whether there is remaining space in the second storage unit;

the second storage unit is further specifically configured to:

5. The apparatus of claim 3, wherein the second storage unit has a second space parameter, the second space parameter being used to characterize whether the storage space of the second storage unit is empty;

the second storage unit is further specifically configured to:

6. The apparatus of claim 3, wherein the second control unit is specifically configured to:

7. The apparatus of claim 6, wherein the channel estimation processing unit comprises:

and an FMT3/4 channel estimation processing unit, configured to estimate, according to the DMRSs of the formats 3 and 4, channel transmission characteristics of DMRS positions for the formats 3 and 4.

8. The apparatus as claimed in claim 7, wherein the FMT2/3/4 channel equalization processing unit is specifically configured to:

9. The apparatus of claim 7,

the FMT2 channel estimation processing unit is further configured to generate a first data flag when the channel estimation process of the FMT2 channel estimation processing unit is complete; the first data flag is used for characterizing the FMT2 channel estimation processing unit receivable data;

10. A PUCCH processing method, the method comprising:

after the channel estimation processing of the current time slot is completed, according to the channel estimation processing result of the current time slot, performing channel equalization processing on the formats 2, 3 and 4 according to the resource block RB of the PUCCH;

and performing RB level processing on the format0 and the format1 according to the frequency domain data and the AGC factor of the format0 and the format1 and the DMRS of the format 1.