CN112039642B

CN112039642B - PUCCH resource allocation method and base station

Info

Publication number: CN112039642B
Application number: CN201910483035.8A
Authority: CN
Inventors: 任东坡; 陈耕雨; 李强
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2022-06-07
Anticipated expiration: 2039-06-04
Also published as: CN112039642A; WO2020244407A1

Abstract

The embodiment of the invention provides a PUCCH resource allocation method and a base station, wherein the method comprises the following steps: determining remaining resources in the PUCCH resources; allocating response resources for the cells corresponding to the PUCCH resources according to the residual resources; when a user accesses the cell, adopting the response resource to carry response information corresponding to the user; the acknowledgement information includes at least one of Acknowledgement (ACK) information and Negative Acknowledgement (NACK) information. The embodiment of the invention can realize the PUCCH resource allocation scheme suitable for the NR system, and the SR, CSI and ACK/NACK resources are fully utilized while ensuring that the user can access the cell.

Description

PUCCH resource allocation method and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a PUCCH resource allocation method and a base station.

Background

A PUCCH (Physical Uplink Control CHannel) is used for transmitting Uplink Control information after the ue is synchronized with the base station, and includes: SR (Schedule Request), CSI (Channel State Information), ACK (Acknowledgement)/NACK (Negative Acknowledgement) Information, and the like.

In an LET (Long Term Evolution) system, resources occupied by SR and CSI are both configured semi-statically, that is, allocated through RRC (Radio Resource Control) signaling notification. In LTE, resources occupied by ACK/NACK are dynamically scheduled by a MAC (Media Access Control ) command through DCI (Downlink Control Information), and need not be allocated by RRC.

In an NR (New Radio ) system, ACK/NACK resources are dynamically allocated through DCI on the basis of semi-static configuration, specifically: RRC signaling configures multiple resource sets, each of which may be allocated multiple groups of resources, each group of resources may include time domain, frequency domain, and codeword resources. And the MAC selects one group from the resources notified by the RRC signaling, and dynamically notifies the user equipment of the resource position which needs to be actually occupied for feeding back ACK/NACK each time through the DCI command of the MAC. Therefore, the allocation scheme for ACK/NACK resources in the LTE system is not suitable for the NR system.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a PUCCH resource allocation method and a corresponding resource allocation apparatus that overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a method for allocating physical uplink control channel PUCCH resources, including:

determining remaining resources in the PUCCH resources;

allocating response resources to the cells corresponding to the PUCCH resources according to the residual resources;

when a user accesses the cell, adopting the response resource to carry response information corresponding to the user; the acknowledgement information includes at least one of Acknowledgement (ACK) information and Negative Acknowledgement (NACK) information.

Preferably, the PUCCH resources correspond to a plurality of physical resource blocks, PRBs; the step of allocating reserved resources to the cell corresponding to the PUCCH resource according to the remaining resources and preset cell configuration information includes:

generating a first format bearing number; the first format bearing number is the maximum number of first format resources borne by a single PRB, and the first format resources are format1 resources;

determining supportable response resource set number corresponding to the residual resource by adopting preset cell configuration information and the first format bearing number; each set of response resources comprises a first resource set and a second resource set;

and allocating resource positions matched with the number of the supportable response resource sets for the cells by adopting the residual resources.

Preferably, the PUCCH resources include a first resource located at a first edge of the frequency band and a second resource located at a second edge of the frequency band, and a frequency value of the first edge is smaller than a frequency value of the second edge; the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; prior to the determining remaining ones of the PUCCH resources, the method further comprises:

acquiring the initial information; the initial information includes: scheduling request SR and channel state information CSI;

the first PRB is divided into the initial information in the order of frequency values from small to large, and the second PRB is divided into the initial information in the order of frequency values from large to small.

Preferably, one PRB includes a plurality of resource locations; the cell configuration information comprises expected number of response resources, total number of PRBs corresponding to PUCCH resources, number of occupied first resource sets, number of occupied second resource sets and second format bearing number; wherein, the number of the first resource set is the number of the resource positions occupied by one first resource set, and the number of the second resource set is the number of the resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the step of determining the supportable number of response resources corresponding to the remaining resources by using the preset cell configuration information and the first format bearer number includes:

acquiring a resource set number counting value and an initial PRB number corresponding to the PRB number occupied by the initial resource;

when the resource set number counting value is smaller than the expected response resource set number, generating a first resource set occupation total number by adopting the resource set number counting value and the first resource set occupation number;

generating a first resource set PRB occupation number according to the total number of the first resource set occupation and the first format bearing number;

generating a second resource set PRB occupation number by adopting the second resource set occupation number and the second format bearing number;

calculating the sum of the initial PRB number, the PRB occupation number of the first resource set and the PRB occupation number of the second resource set as the current PRB occupation number;

when the current PRB occupation number is smaller than the total number of PRBs, performing increment processing on the resource sleeve number count value by adopting a preset increment value to generate a new resource sleeve number count value;

and generating a new current PRB occupation number by adopting the new resource sleeve number counting value until the new current PRB occupation number is not less than the total number of PRBs, and determining the previous resource sleeve number counting value as the supportable response resource sleeve number.

Preferably, the step of generating the number of first resource set PRB occupancies according to the total number of first resource set occupancies and the first format bearer number includes:

judging whether the initial resource and the first resource set have a shared PRB or not;

if the initial resource and the first resource set have shared PRBs, taking the quotient of the total number of occupied first resource set and the first format bearer number as the PRB occupied number of the first resource set;

if the initial resource and the first resource set have a shared PRB, determining that the number of resource positions occupied by the first format resource in the shared PRB is the number of multiplexing resources; determining the difference value between the total number occupied by the first resource set and the number of multiplexing resources as the number of non-multiplexing resources; and taking the quotient of the number of the non-multiplexing resources and the first format bearing number as the number occupied by the PRB of the first resource set.

Preferably, the step of allocating resource locations matching the supportable response resource set number for the cell by using the remaining resources includes:

determining a target first resource set total occupation number and a target second resource set total occupation number corresponding to the supportable response resource set number, and a residual PRB corresponding to the residual resource;

generating initial cyclic shift information and time domain spreading information corresponding to the first resource set;

determining a first starting PRB position corresponding to the first resource set by adopting the residual PRB;

dividing the remaining PRBs into first resource sets corresponding to the total occupied number of the target first resource set by using the first starting PRB position, the cyclic shift information and the time domain spread spectrum information;

determining a second starting PRB position corresponding to the second resource set according to the resource position stored by the first resource set;

and dividing the remaining PRBs into second resource sets corresponding to the total occupation number of the target second resource set by using the second starting PRB position and the second format bearing number.

Preferably, the dividing the remaining PRBs into the first resource sets corresponding to the total number of occupied target first resource sets by using the first starting PRB position, the cyclic shift information, and the time domain spreading information includes:

judging whether the initial PRB number is larger than half of the total number of the PRBs;

if the initial PRB number is not more than half of the total number of the PRBs, dividing the first PRB into the first resource set by taking the position of the first initial PRB as a starting point according to the sequence of frequency values from small to large;

generating the number of occupied PRBs of the current first resource set;

and when the sum of the number of occupied PRBs of the current first resource set and the number of the initial PRBs is greater than half of the total number of the PRBs, dividing the second PRBs into the first resource set according to the order of frequency values from large to small.

Preferably, the step of dividing the remaining PRBs into first resource sets corresponding to the total number of occupied target first resource sets by using the first starting PRB position, the cyclic shift information, and the time domain spreading information further includes:

and if the initial PRB number is larger than half of the total number of the PRBs, dividing the second PRB into the first resource set by taking the position of the first initial PRB as a starting point according to the sequence of frequency values from large to small.

Preferably, the dividing the remaining PRBs into the second resource sets corresponding to the total number of occupied target second resource sets includes:

generating the number of occupied PRBs of the current first resource set;

judging whether the sum of the initial PRB number and the current PRB occupation number of the first resource set is more than half of the total number of the PRBs;

if the sum of the initial PRB number and the current PRB occupation number of the first resource set is not more than half of the total number of the PRBs, dividing the first PRB into the second resource set by taking the second initial PRB position as a starting point according to the sequence of frequency values from small to large;

generating the number of occupied PRBs of the current second resource set;

and when the sum of the initial PRB number, the current PRB occupation number of the first resource set and the current PRB occupation number of the second resource set is greater than half of the total number of the PRBs, dividing the second PRBs into the first resource set according to the order of frequency values from large to small.

Preferably, the dividing the remaining PRBs into a second resource set corresponding to the total number of occupied target second resource sets further includes:

and if the sum of the initial PRB number and the PRB occupation number of the current first resource set is more than half of the total number of the PRBs, dividing the second PRB to the second resource set by taking the position of the second initial PRB as a starting point.

Preferably, the step of using the response resource to carry response information corresponding to the user includes:

acquiring the number of currently allocated users of each set of response resources;

determining a set of response resources with the least number of the currently allocated users as target response resources;

allocating the target response resource for the user; the target response resource is used for bearing response information corresponding to the user.

The embodiment of the invention also discloses a base station, which comprises:

a residual resource module, configured to determine a residual resource in the PUCCH resources;

the response resource allocation module is used for allocating response resources to the cells corresponding to the PUCCH resources according to the residual resources;

a user access module, configured to use the response resource to carry response information corresponding to the user when the user accesses the cell; the acknowledgement information includes at least one of Acknowledgement (ACK) information and Negative Acknowledgement (NACK) information.

Preferably, the PUCCH resources correspond to a plurality of physical resource blocks, PRBs; the response resource allocation module comprises:

the first format bearing number submodule is used for generating a first format bearing number; the first format bearing number is the maximum number of first format resources borne by a single PRB, and the first format resources are format1 resources;

the supported set number sub-module is used for determining the supportable response resource set number corresponding to the residual resources by adopting preset cell configuration information and the first format bearing number; each set of response resources comprises a first resource set and a second resource set;

and the residual resource allocation submodule is used for allocating resource positions matched with the number of the supportable response resource sets for the cells by adopting the residual resources.

Preferably, the PUCCH resources include a first resource located at a first edge of the frequency band and a second resource located at a second edge of the frequency band, and a frequency value of the first edge is smaller than a frequency value of the second edge; the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; the base station further comprises:

the initial information acquisition module is used for acquiring the initial information; the initial information includes: scheduling request SR and channel state information CSI;

and the initial information dividing module is used for dividing the first PRB into the initial information according to the sequence of the frequency values from small to large, and dividing the second PRB into the initial information according to the sequence of the frequency values from large to small.

Preferably, one PRB includes a plurality of resource locations; the cell configuration information comprises expected number of response resources, total number of PRBs corresponding to PUCCH resources, number of occupied first resource sets, number of occupied second resource sets and second format bearing number; wherein, the number of the first resource set is the number of the resource positions occupied by one first resource set, and the number of the second resource set is the number of the resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the support set number sub-module comprises:

a first obtaining unit, configured to obtain a resource set count value and an initial PRB number corresponding to the PRB number occupied by the initial resource;

a first resource set total occupancy generating unit, configured to generate a first resource set total occupancy by using the resource set count value and the first resource set occupancy when the resource set count value is smaller than the expected response resource set count value;

a first resource set PRB occupation number generation unit, configured to generate a first resource set PRB occupation number according to the total number of first resource set occupancies and the first format bearer number;

a second resource set PRB occupation number generation unit, configured to generate a second resource set PRB occupation number by using the second resource set occupation number and the second format bearer number;

the PRB summing unit is used for calculating the sum of the initial PRB number, the PRB occupation number of the first resource set and the PRB occupation number of the second resource set as the current PRB occupation number;

the resource set number counting value unit is used for performing increment processing on the resource set number counting value by adopting a preset increment value when the current PRB occupation number is smaller than the total number of the PRBs, and generating a new resource set number counting value;

and the supported set number determining unit is used for generating a new current PRB occupation number by adopting the new resource set number counting value, and determining the previous resource set number counting value as the supportable response resource set number until the new current PRB occupation number is not less than the total number of PRBs.

Preferably, the first resource set PRB occupancy number generation unit includes:

a first determining subunit, configured to determine whether there is a shared PRB between the initial resource and the first resource set;

a first negation subunit, configured to, if there is a shared PRB between the initial resource and the first resource set, adopt a quotient of a total number of occupied PRBs of the first resource set and the first format bearer number as the first resource set PRB occupancy number;

a first determining unit, configured to determine, if there is a shared PRB between the initial resource and the first resource set, that the number of resource locations occupied by the first format resource in the shared PRB is a number of multiplexing resources; determining the difference value between the total number occupied by the first resource set and the number of multiplexing resources as the number of non-multiplexing resources; and taking the quotient of the number of the non-multiplexing resources and the first format bearing number as the number of the first resource set PRB occupation.

Preferably, the remaining resource allocation submodule includes:

a first determining unit, configured to determine a total number of target first resource set occupancies and a total number of target second resource set occupancies that correspond to the supportable number of response resource sets, and a remaining PRB corresponding to the remaining resource;

an information generating unit, configured to generate initial cyclic shift information and time domain spreading information corresponding to the first resource set;

a first starting unit, configured to determine a first starting PRB position corresponding to the first resource set using the remaining PRB;

a first dividing unit, configured to divide the remaining PRBs into first resource sets corresponding to the total number of occupied target first resource sets by using the first starting PRB position, the cyclic shift information, and the time domain spreading information;

the second starting unit is used for determining a second starting PRB position corresponding to the second resource set according to the resource position stored in the first resource set;

and a second dividing unit, configured to divide the remaining PRBs into a second resource set corresponding to the total occupied amount of the target second resource set by using the second starting PRB position and the second format bearer number.

Preferably, the first division unit includes:

a second judging subunit, configured to judge whether the initial number of PRBs is greater than half of the total number of PRBs;

a second negation subunit, configured to, if the number of the initial PRBs is not greater than half of the total number of the PRBs, divide the first PRB into the first resource set according to a descending order of frequency values and with the position of the first initial PRB as a starting point;

a first current occupation number generation subunit, configured to generate a current first resource set PRB occupation number;

and the first resource dividing and dividing unit is used for dividing the second PRB into the first resource set according to the order of frequency values from large to small when the sum of the number of occupied PRBs in the current first resource set and the number of the initial PRBs is greater than half of the total number of the PRBs.

Preferably, the first division unit further includes:

a first upper partition subunit, configured to, if the number of the initial PRBs is greater than half of the total number of the PRBs, partition the second PRB to the first resource set according to a descending order of frequency values with the position of the first initial PRB as a starting point.

Preferably, the second dividing unit includes:

a second current occupation number generation subunit, configured to generate a current first resource set PRB occupation number;

a third determining subunit, configured to determine whether a sum of the initial number of PRBs and the number of occupied PRBs in the current first resource set is greater than half of the total number of PRBs;

a third negation unit, configured to, if a sum of the initial number of PRBs and the number of occupied PRBs in the current first resource set is not greater than half of the total number of PRBs, divide the first PRB into the second resource set according to a sequence of frequency values from small to large, with the second starting PRB position as a starting point;

a third current occupancy number generation subunit, configured to generate a current second resource set PRB occupancy number;

and the second resource dividing and dividing unit is used for dividing the second PRB into the first resource set according to the order of frequency values from large to small when the sum of the initial PRB number, the current PRB occupation number of the first resource set and the current PRB occupation number of the second resource set is greater than half of the total number of the PRBs.

Preferably, the second dividing unit further includes:

and a second upper dividing and dividing unit, configured to divide the second PRB to the second resource set with a second starting PRB position as a starting point if a sum of the initial number of PRBs and the current number of PRBs occupied by the first resource set is greater than half of the total number of PRBs.

Preferably, the subscriber access module includes:

the user number obtaining submodule is used for obtaining the number of the users which are currently distributed by each set of response resources;

the quantity optimization submodule is used for determining a set of response resources with the least quantity of the currently allocated users as target response resources;

a user bearing sub-module, configured to allocate the target response resource to the user; the target response resource is used for bearing response information corresponding to the user.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, after the PUCCH resources are divided into SCI and SR, the response resources are allocated to the corresponding cells by adopting the residual resources in the PUCCH resources, so that when a user accesses the cells, the response resources and the cells can be adopted to transmit positive response or negative response, thereby realizing the PUCCH resource allocation scheme suitable for the NR system, ensuring that the user can access the cells, and fully utilizing the SR, CSI and ACK/NACK resources.

Drawings

FIG. 1 is a flowchart illustrating the steps of an embodiment of a resource allocation method of the present invention;

fig. 2 is a block diagram of a base station according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for allocating a PUCCH resource according to the present invention is shown, which may specifically include the following steps:

step 101, determining the residual resource in PUCCH resources;

in the NR system, PUCCH resources need to be divided into SR, CSI, and ACK/NACK. The invention is based on the successful reservation of the CSI and SR resources, i.e. the residual resources can refer to the resources in PUCCH from which the CSI and SR are removed.

102, allocating response resources to the cells corresponding to the PUCCH resources according to the residual resources;

when a cell is established, a certain number of ACK/NACK resources need to be initialized. According to the invention, after the CSI and the SR are allocated by the PUCCH resources, the ACK/NACK is subjected to resource division, namely, the ACK/NACK resources, namely, the response resources are allocated to the cell corresponding to the PUCCH resources by adopting the residual resources.

103, when the user accesses the cell, adopting the response resource to carry response information corresponding to the user; the acknowledgement information includes at least one of acknowledgement, ACK, information and negative acknowledgement, NACK, information.

After allocating the acknowledgement resource for the cell according to the remaining resources, the user may transmit an acknowledgement or a negative acknowledgement with the cell using the acknowledgement resource.

In an embodiment of the present application, the PUCCH resources include a first resource and a second resource, the first resource is located at a first edge of a frequency band, the second resource is located at a second edge of the frequency band, and a frequency value of the first edge is smaller than a frequency value of the second edge; the PUCCH resources correspond to a plurality of Physical Resource Blocks (PRBs); the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; prior to step 101, the method further comprises: acquiring the initial information; the initial information includes: scheduling request SR and channel state information CSI; the first PRB is divided into the initial information in the order of frequency values from small to large, and the second PRB is divided into the initial information in the order of frequency values from large to small.

The PUCCH resources may be divided into two parts, i.e., a first resource and a second resource, where the first resource may be located at a lower edge of the frequency band, i.e., a first edge, and the second resource may be located at an upper edge of the frequency band, i.e., a second edge.

The PRB is a physical bearer of the PUCCH resource, and is divided into two parts based on the PUCCH resource, and correspondingly, the PRB may also be divided into two parts, that is, a first PRB corresponding to the first resource and a PRB corresponding to the second resource.

After the initial information containing the SR and the CSI is obtained, the first PRB is divided into the initial information according to the order of the frequency values from small to large, namely the corresponding relation between the first PRB and the initial information is established. And when the first PRB is exhausted and the initial information needs to be divided, dividing the second PRB into the initial information according to the sequence of the frequency values from large to small.

In an embodiment of the application, the step 102 includes:

substep S1021, generating a first format bearing number; the first format bearing number is the maximum number of first format resources borne by a single PRB, and the first format resources are format1 resources;

the PUCCH resource may correspond to a management station, which is configured to record various parameters corresponding to the current PUCCH resource, such as: the parameters corresponding to the format1 resource include: cyclic shift interval cyclicshift delta, cyclic shift number NofCyclicShift, and the number of symbols occupied by format1 resources.

And obtaining the configurable number NofOCC of the time domain spread spectrum according to the number of symbols occupied by format1 and the 38.211 protocol in the 5G standard.

The first format bearer number PucchF1ResNum may be generated by the following formula:

PucchF1ResNum＝NofCyclicShift*NofOCC/CyclicShiftDelta

in one example, NofCyclicShift is 12, i.e., the cyclic shift interval is determined to be 12.

Substep S1022, determining supportable response resource set number corresponding to the remaining resource by using preset cell configuration information and the first format bearer number; each set of acknowledgement resources comprises a first resource set0 and a second resource set 1;

the management station may preset cell configuration information, and may determine, using the cell configuration information and the first format bearer number generated in step 1021, the number of response resources that can be supported by the remaining resources after the PUCCH resource is divided into the initial information. Wherein each set of acknowledgement resources may comprise a first resource set0 and a second resource set 1.

And a substep S1023 of allocating resource positions matched with the supportable response resource set number for the cell by using the residual resources.

After the number of the supportable response resources is determined, the remaining resources are divided into response resources, so that the division of the cell-level response resources is realized.

In one embodiment of the present application, one PRB includes a plurality of resource locations; the cell configuration information comprises expected number of response resources, total number of PRBs corresponding to PUCCH resources, number of occupied first resource sets, number of occupied second resource sets and second format bearing number; wherein, the number of the first resource set is the number of the resource positions occupied by one first resource set, and the number of the second resource set is the number of the resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the sub-step S1022 may include:

the substep S10221, acquiring a resource set number count value and an initial PRB number corresponding to the PRB number occupied by the initial resource;

the supportable number of response resource sets is determined by incrementing the resource set count value and performing substeps S10222-S10227.

Substep S10222, when the count value of the resource set number is smaller than the expected set number of the response resource, generating a total number of occupied first resource set by using the count value of the resource set number and the occupied first resource set;

substep S10223, generating a first resource set PRB occupation number according to the total number of the first resource set occupation and the first format bearer number;

in one embodiment of the present application, the sub-step S10223 includes:

substep S102231, determining whether there is a PRB shared by the initial resource and the first resource set;

in the substep S102232, if there is no PRB shared by the initial resource and the first resource set, a quotient of a total number occupied by the first resource set and the first format bearer number is adopted as the first resource set PRB occupied number;

substep S102233, if there is a shared PRB between the initial resource and the first resource set, determining the number of resource positions occupied by the first format resource in the shared PRB as the number of multiplexing resources; determining the difference value between the total number occupied by the first resource set and the number of multiplexing resources as the number of non-multiplexing resources; and taking the quotient of the number of the non-multiplexing resources and the first format bearing number as the number of the first resource set PRB occupation.

Substep S10224, generating a second resource set PRB occupancy number by using the second resource set occupancy number and the second format bearer number;

substep S10225, calculating the sum of the initial number of PRBs, the number of PRBs occupied by the first resource set, and the number of PRBs occupied by the second resource set as the current number of PRBs occupied;

step S10226, when the current PRB number is smaller than the total number of PRBs, performing increment processing on the resource set number count value by adopting a preset increment value to generate a new resource set number count value;

and substep S10227, generating a new current PRB occupancy number by using the new resource set number count value, and determining a previous resource set number count value as the supportable response resource set number until the new current PRB occupancy number is not less than the total PRB number.

In one embodiment of the present application, the sub-step S10223 includes:

substep S102233, if there is a shared PRB between the initial resource and the first resource set, determining the number of resource locations occupied by the first format resource in the shared PRB as the number of multiplexing resources; determining the difference value between the total number occupied by the first resource set and the number of multiplexing resources as the number of non-multiplexing resources; and taking the quotient of the number of the non-multiplexing resources and the first format bearing number as the number of the first resource set PRB occupation.

In the following, an example is referred to for further explanation of sub-steps S10221-S10227, and sub-steps S102231-S102233:

the cell configuration information includes total number of PRBs NofPucchPrb corresponding to M, PUCCH resources, expected number of response resources set, novresperpete 0, number of second resource set, novresperpete 1, and number of second format bearers NofPrbPerFormat 3.

And acquiring a count value i of the number of the resource sleeves and the number NofCsiAndSr of the initial PRB.

Carrying out 1-M circulation judgment on the set number i, if the set of response resources is supported, determining the total number of resource positions occupied by the first resource set in the set of response resources, namely the total number NofAckSet0Res occupied by the first resource set, by the following formula:

NofAckSet0Res＝NofResPerSet0*i，

if there is a shared PRB between SR and set0 after the resource occupied by the initial information is divided, and the last index of the resource position of SR in the shared PRB is SrLastIndex (0-PucchF 1ResNum-1), then the number of PRBs individually occupied by set0 in the i set of response resources, that is, the number of occupied PRBs in the first resource set, is:

NofAckSet0Prb ═ (NofAckSet0Res- (PucchF1ResNum-SrLastIndex-1))/PucchF1 ResNum; wherein the formula is rounded up.

If no shared PRB exists between SR and set0 after the CSI and SR resources are divided, the number of PRBs individually occupied by set0 in the i-set response resource, that is, the number of PRBs occupied by the first resource set, is:

NofAckSet0Prb ═ NofAckSet0Res/PucchF1 ResNum; wherein the formula is rounded up.

The number of PRBs occupied by set1 in the i sets of response resources, that is, the number occupied by PRBs in the second resource set, is:

NofAckSet1Prb＝NofPrbPerFormat3*NofResPerSet1*i。

if (NofCsiAndSr + NofAckSet0Prb + NofAckSet1Prb) is larger than NofPucchPrb, the PUCCH resource cannot be divided into i sets of response resources, only i-1 sets of resources can be put down, namely the number N of supportable response resources is i-1, and the acquisition of the number N of supportable response resources is not continued to circulate; otherwise, add 1 to i, generate a new resource set count calculation value, and re-perform substeps 10222-S10226.

For different resource sets, the corresponding starting PRB positions need to be determined, and the PUCCH resources can be divided into corresponding resource sets. Since the resource format of the first resource set is format1, the initial cyclic shift information initialcychchift and the time domain spreading information timeDomainOCC corresponding to the first resource set are also generated.

In an embodiment of the present application, the sub-step S1023 may include:

sub-step S10231, determining a target first resource set total occupied number and a target second resource set total occupied number corresponding to the supportable response resource set number, and a remaining PRB corresponding to the remaining resource;

after determining the number N of supportable response resources, the total number of resources occupied by set0 of N sets of response resources, i.e. the total number of occupied target first resource set novackset 0Res ', and the total number of occupied target second resource set novackset 1Res' of set1 of N sets of response resources may be determined.

Sub-step S10232, generating initial cyclic shift information and time domain spreading information corresponding to the first resource set;

in the following, an example is used to further explain sub-step S10232:

and circularly judging the resources i (0 to NofAckSet0Res-1) in each first resource set. ResIndex (0-PucchF 1ResNum-1) represents the resource index of the ith resource in the current PRB.

If the SR happens to occupy an integer number of PRBs, with no PRBs shared with set0, then:

ResGlobalIndex ═ i; ResGlobalIndex denotes the resource index of the ith resource in the first set of resources in all PRBs occupied by set 0.

If SR and set0 have shared PRB, then the index of the last resource corresponding to SR is SrLastIndex, at this time, ResGlobalIndex is:

ResGlobalIndex＝i+SrLastIndex+1；

then, in the first resource set, the resource index residex of the ith resource in the current PRB is:

ResIndex — ResGlobalIndex mod PucchF1 ResNum; where mod is the remainder operation.

The resource position number responsnum corresponding to the resource index residex is:

ResPosNum＝ResIndex*CyclicShiftDelta。

initialCyclicShift — ResPosNum mod PucchF1 ResNum.

Then timeDomainOCC ═ responsnum/PucchF 1 ResNum; wherein the formula is rounded down.

Sub-step S10233, determining a first starting PRB position corresponding to the first resource set by using the remaining PRBs;

sub-step S10234, using the first starting PRB position, the cyclic shift information, and the time domain spreading information, to divide the remaining PRBs into first resource sets corresponding to the total number of occupied target first resource sets;

in the embodiment of the present application, the sub-step S10234 includes:

the substep S102341, determining whether the initial number of PRBs is greater than half of the total number of PRBs;

if the initial PRB number is not greater than half of the total PRB number, in the order of frequency values from small to large, taking the first initial PRB position as the starting point, dividing the first PRB into the first resource set;

a substep S102343 of generating the number of occupied PRBs of the current first resource set;

and a substep S102344, when the sum of the number of occupied PRBs of the current first resource set and the number of initial PRBs is greater than half of the total number of PRBs, dividing the second PRBs into the first resource set according to an order of frequency values from large to small.

And a substep S102345, if the initial number of PRBs is greater than half of the total number of PRBs, dividing the second PRB into the first resource set according to a descending order of frequency values, with the position of the first initial PRB as a starting point.

In the following, an exemplary sub-step sub-steps S10233-S10234 are referred to for further explanation:

and circularly judging the resources i (0-NofAckSet 0Res' -1) in each first resource set, and calculating the number Prb set0Num of the PRBs occupied by the previous i first resource sets independently (namely, the resources do not contain the PRBs shared by the SRs).

If the SR has no PRB in common with the first resource set, then:

Prbset0Num＝ResGlobalIndex/PucchF1ResNum+1；

if the SR has PRB shared with the first resource set, then

Prb set0Num＝ResGlobalIndex/PucchF1ResNum。

After obtaining Prbset0Num, if the number of PRBs occupied by SR and CSI and the number of PRBs individually occupied by the first i first resource sets are not more than half of the total number of PUCCHs (nofcsiandr + PRB set0Num is less than or equal to NofPucchPrb/2), that is, the first i resources in the first resource sets are divided into first PRBs:

startingset0PRB PrbNum + SrEndPrb; startingset0PRB is the starting PRB position of the first resource set, and SrEndPrb is the PRB position of the last SR resource.

If the number of PRBs occupied by the SR and the CSI and the number of PRBs occupied by the first i sets 0 of resources are larger than half of the total number of PUCCHs, the ith resource in the first resource set is divided into second PRBs.

If the initial PRB number is larger than half of the total number of the PUCCHs, namely if the number of PRBs occupied by the SR and CSI is smaller than or equal to half of the total number of the PUCCHs (NofCsiAndSr is less than or equal to NofPucchPrb/2), namely, the first resource set is divided from the first PRB, the middle is inverted, one part is in the first PRB, and the other part is in the second PRB. Note that when the first resource set is divided for the first time in the second PRB, i value is OverTurnIndex, then:

FirstUpSet0Prb＝PucchUpEndPrb；

UlPrbset0Num＝(i–OverTurnIndex)/PucchF1ResNum+1；

wherein, firstUpSet0Prb indicates that the resource which is set0 divided from the second edge is the first PRB occupied by the first resource set, PucchUpEndPrb indicates the first second PRB, and UlPrbset0Num indicates the number of the first PRBs occupied by the i resources divided to the first resource set.

Otherwise, if the initial number of PRBs is less than half of the total number of PUCCHs, i.e. if the number of PRBs occupied by SR and CSI is greater than half of the total number of PUCCHs, i.e. the first set of resources is divided only into second PRBs, then,

if the SR and the first resource set have PRBs in common,

FirstSet0UlPrb＝SrEndPrb；

if the SR and the first resource set do not have PRBs in common,

FirstSet0UlPrb＝SrEndPrb–1。

wherein, SrEndPrb indicates the PRB location where the last SR resource is located.

Since the first resource set is only divided into the second PRBs, the number of PRBs individually occupied by the first i resources on the upper half of the PUCCH is the same as the number of PrbNum individually occupied by the first i set0 resources, that is,

UlPrbset0Num＝Prbset0Num。

then, if the resource of the ith resource set is partitioned by the first PRB and the SR has no PRB in common with the first resource set, then:

Startingset0PRB＝FirstSet0UlPrb+1-UlPrbset0Num；

if the SR has a shared PRB with the first resource set, then:

Startingset0PRB＝FirstSet0UlPrb–UlPrbset0Num。

and allocating PRBs corresponding to PUCCH resources to a first resource set by adopting the Startingset1PRB, initialCyclicShift and timeDomainOCC.

Sub-step S10235, determining a second starting PRB position corresponding to the second resource set according to the resource position stored by the first resource set;

and a substep S10236, dividing the remaining PRBs into second resource sets corresponding to the total occupied amount of the target second resource set by using the second starting PRB position and the second format bearer number.

In an embodiment of the application, the sub-step S10236 may include:

a substep S102361, generating the occupied number of PRB of the current first resource set;

the substep S102362, determining whether the sum of the initial number of PRBs and the number of occupied PRBs of the current first resource set is greater than half of the total number of PRBs;

if the sum of the initial number of PRBs and the number of PRBs occupied by the current first resource set is not greater than half of the total number of PRBs, dividing the first PRB into the second resource set by using the second starting PRB position as a starting point according to a descending order of frequency values;

a substep S102364 of generating the number of current second resource set PRB occupancies;

and a substep S102365, when the sum of the initial number of PRBs, the number of PRBs occupied by the current first resource set, and the number of PRBs occupied by the current second resource set is greater than half of the total number of PRBs, dividing the second PRBs into the first resource set according to a descending order of frequency values.

In the sub-step S102366, if the sum of the initial number of PRBs and the number of occupied PRBs of the current first resource set is greater than half of the total number of PRBs, the second PRB is divided into the second resource set with the second starting PRB position as the starting point.

In the following, sub-steps S10235-S10236 are further explained with reference to an example:

the cycle judgment is performed for each resource i (0 to NofAckSet1Res' -1):

calculating the number Prbset1Num of PRBs occupied by the first i second resource sets independently:

Prb set1Num＝(i+1)*NofPrbPerFormat3；

if the number of PRBs occupied by the SR, CSI and the first resource set and the number of PRBs occupied by the first i second resource sets alone are not more than half of the total number of PUCCHs (NofCsiAndSr + NofAckSet0Prb + PrbNum ≦ NofPucchPrb/2), i.e. the first i second resource sets are divided into first PRBs,

Startingset1PRB＝Ack0EndPrb+1+i*NofPrbPerFormat3；

wherein Ack0EndPrb represents a PRB location occupied by the first resource set.

Otherwise, if the number of PRBs occupied by the SR, CSI and the first resource set and the number of PRBs occupied by the first i second resource sets independently are more than half of the total number of the PUCCHs, the ith resource is distributed on the upper half part of the PUCCHs.

At this time, if the number of PRBs occupied by the SR, CSI, and first resource set is less than or equal to half of the total number of PUCCHs (nofcsiandrsr + NofAckSet0PRB ≦ NofPucchPrb/2), that is, the first resource set is initially divided into the first PRBs, a part of which is divided into the first PRBs, and the other part of which is divided into the second PRBs. Note that the value of i when the second resource set is flipped to the upper half of PUCCH for the first time is overhurnindex'. Then it is determined that,

UlPrbset1Num＝(i–OverTurnIndex+1)*PucchF3ResNum；

startingPRB＝PucchUpEndPrb+1–UlPrbset1Num；

the PUCCH uplink resource PRB represents the upper edge PRB of the upper half of the PUCCH resource, and UlPrbset1Num represents the number of first PRBs occupied by the first i resources in the second resource set individually.

Otherwise, if the number of PRBs occupied by the SR, CSI, and first resource set is greater than half of the total number of PUCCHs, i.e. the second resource set is divided only in the second PRBs, then,

UlPrbset1Num＝(i+1)*PucchF3ResNum；

Startingset1PRB＝Ack0EndPrb–UlPrbset1Num。

and allocating PRBs corresponding to PUCCH resources to a second resource set by adopting the Startingset1 PRB.

In an embodiment of the present application, the step 103 may include:

step S1031, obtaining the number of currently allocated users of each set of response resources;

substep S1032, determining a set of response resources with the least number of currently allocated users as target response resources;

substep S1033, allocating said target response resource for said user; the target response resource is used for bearing response information corresponding to the user.

Recording the number U of the currently allocated users of each set of response resources in real time_iWhen a user accesses, U is selected_iAnd the response resource corresponding to the minimum value is given to the user, and the number of the currently allocated users corresponding to the set of resources is updated, so that the number of the users allocated to each set of response resource is balanced, and the communication blockage caused by the same response resource adopted by excessive users is prevented.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

Referring to fig. 2, a block diagram of a base station according to an embodiment of the present invention is shown, which may specifically include the following modules:

a remaining resource module 201, configured to determine remaining resources in the PUCCH resources;

a response resource allocation module 202, configured to allocate a response resource for a cell corresponding to the PUCCH resource according to the remaining resources;

a user access module 203, configured to use the response resource to carry response information corresponding to the user when the user accesses the cell; the acknowledgement information includes at least one of Acknowledgement (ACK) information and Negative Acknowledgement (NACK) information.

In an embodiment of the application, the PUCCH resources correspond to a plurality of physical resource blocks, PRBs; the response resource allocation module comprises:

In one embodiment of the present application, the PUCCH resources include a first resource and a second resource, the first resource is located at a first edge of a frequency band, the second resource is located at a second edge of the frequency band, and a frequency value of the first edge is smaller than a frequency value of the second edge; the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; the base station further comprises:

In one embodiment of the present application, one PRB includes a plurality of resource locations; the cell configuration information comprises expected number of response resources, total number of PRBs corresponding to PUCCH resources, number of occupied first resource sets, number of occupied second resource sets and second format bearing number; the number of the occupied first resource sets is the number of resource positions occupied by one first resource set, and the number of the occupied second resource sets is the number of resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the support set number sub-module comprises:

In an embodiment of the present application, the first resource set PRB occupancy number generation unit includes:

a first negation subunit, configured to, if there is a shared PRB between the initial resource and the first resource set, adopt a quotient of a total number of occupied first resource set and the first format bearer number as a PRB occupied number of the first resource set;

In an embodiment of the present application, the remaining resource allocation submodule includes:

In one embodiment of the present application, the first dividing unit includes:

In one embodiment of the present application, the first dividing unit further includes:

In an embodiment of the present application, the second dividing unit includes:

a third current occupation number generation subunit, configured to generate a current second resource set PRB occupation number;

In an embodiment of the present application, the second dividing unit further includes:

In one embodiment of the present application, the subscriber access module includes:

the user quantity obtaining submodule is used for obtaining the quantity of the users which are currently distributed in each set of response resources;

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification 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.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be 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 terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The PUCCH resource allocation method and the base station provided by the present invention are introduced in detail above, and a specific example is applied in the present disclosure to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A Physical Uplink Control Channel (PUCCH) resource allocation method is characterized by comprising the following steps:

determining remaining resources in the PUCCH resources; the PUCCH resources correspond to a plurality of Physical Resource Blocks (PRBs);

allocating response resources for the cells corresponding to the PUCCH resources according to the residual resources;

when a user accesses the cell, adopting the response resource to carry response information corresponding to the user; the acknowledgement information comprises at least one of Acknowledgement (ACK) information and Negative ACK (NACK) information;

wherein, the response resource comprises a resource position matched with the corresponding supportable response resource set number; the supportable response resource set number is determined based on preset cell configuration information and a first format bearing number; the first format bearing number is the maximum value of the number of the first format resources borne by a single PRB; and the residual resources are the resources of the PUCCH resources after the channel state information and the scheduling request are removed.

2. The method according to claim 1, wherein the step of allocating acknowledgement resources for the cell corresponding to the PUCCH resource according to the remaining resources comprises:

generating the first format bearing number; the first format resource is a format1 resource;

3. The method of claim 2, wherein the PUCCH resources comprise a first resource located at a first edge of a frequency band and a second resource located at a second edge of the frequency band, wherein a frequency value of the first edge is smaller than a frequency value of the second edge; the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; prior to the determining remaining ones of the PUCCH resources, the method further comprises:

acquiring initial information; the initial information includes: scheduling request SR and channel state information CSI;

4. The method of claim 3, wherein one PRB comprises a plurality of resource locations; the cell configuration information comprises expected number of sets of response resources, total number of PRBs corresponding to PUCCH resources, number occupied by a first resource set, number occupied by a second resource set, and second format bearing number; the number of the occupied first resource sets is the number of resource positions occupied by one first resource set, and the number of the occupied second resource sets is the number of resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the step of determining the supportable number of response resources corresponding to the remaining resources by using the preset cell configuration information and the first format bearer number includes:

5. The method of claim 4, wherein the step of generating a PRB occupancy number for the first resource set according to the total occupancy number for the first resource set and the first format bearer number comprises:

if not, adopting the quotient of the total number of the first resource set occupied and the first format bearing number as the first resource set PRB occupied number;

if yes, determining the number of resource positions occupied by the first format resource in the shared PRB as the number of multiplexing resources; determining the difference value between the total number occupied by the first resource set and the number of multiplexing resources as the number of non-multiplexing resources; and taking the quotient of the number of the non-multiplexing resources and the first format bearing number as the number of the first resource set PRB occupation.

6. The method according to claim 5, wherein said step of allocating the resource location matching the supportable response resource set for the cell using the remaining resources comprises:

and dividing the residual PRB into second resource sets corresponding to the total occupied number of the target second resource set by adopting the second starting PRB position and the second format bearing number.

7. The method of claim 6, wherein the step of partitioning the remaining PRBs into first resource sets corresponding to the total number of target first resource set occupancies using the first starting PRB position, the cyclic shift information, and the time domain spreading information comprises:

if not, dividing the first PRB to the first resource set by taking the position of the first starting PRB as a starting point according to the sequence of the frequency values from small to large;

generating the PRB occupation number of the current first resource set;

8. The method of claim 7, wherein the step of partitioning the remaining PRBs into first resource sets corresponding to the total number of target first resource sets occupied by the remaining PRBs using the first starting PRB position, the cyclic shift information, and the time domain spreading information further comprises:

9. The method of claim 6, wherein the dividing the remaining PRBs into second resource sets corresponding to the target second resource set total occupancy comprises:

generating the number of occupied PRBs of the current first resource set;

judging whether the sum of the number of the initial PRBs and the number of the occupied PRBs of the current first resource set is greater than half of the total number of the PRBs;

if not, dividing the first PRB into the second resource set by taking the second starting PRB position as a starting point according to the sequence of the frequency values from small to large;

generating the number of occupied PRBs of the current second resource set;

10. The method of claim 9, wherein the step of partitioning the remaining PRBs into a second resource set corresponding to the target second resource set occupation total further comprises:

and if the sum of the initial PRB number and the current PRB occupation number of the first resource set is more than half of the total number of the PRBs, dividing a second PRB to the second resource set by taking a second initial PRB position as a starting point.

11. The method according to claim 2, wherein the step of using the response resource to carry response information corresponding to the user comprises:

12. A base station, comprising:

a residual resource module, configured to determine a residual resource in the PUCCH resources; the PUCCH resources correspond to a plurality of Physical Resource Blocks (PRBs);

a user access module, configured to use the response resource to carry response information corresponding to the user when the user accesses the cell; the acknowledgement information comprises at least one of Acknowledgement (ACK) information and Negative Acknowledgement (NACK) information;

13. The base station of claim 12, wherein the response resource allocation module comprises:

the first format bearing number submodule is used for generating a first format bearing number; the first format resource is a format1 resource;

14. The base station of claim 13, wherein the PUCCH resources comprise a first resource located at a first edge of a frequency band and a second resource located at a second edge of the frequency band, wherein a frequency value of the first edge is smaller than a frequency value of the second edge; the PRBs comprise sequentially ordered first PRBs corresponding to the first resources and sequentially ordered second PRBs corresponding to the second resources; the base station further comprises:

15. The base station of claim 14, wherein one PRB includes a plurality of resource locations; the cell configuration information comprises expected number of response resources, total number of PRBs corresponding to PUCCH resources, number of occupied first resource sets, number of occupied second resource sets and second format bearing number; wherein, the number of the first resource set is the number of the resource positions occupied by one first resource set, and the number of the second resource set is the number of the resource positions occupied by one second resource set; the second format bearing number is the number of PRBs occupied by one second format resource, and the second format resource is a format3 resource; the support set number sub-module comprises:

the first acquisition unit is used for acquiring a resource set number counting value and an initial PRB number corresponding to the PRB number occupied by the initial resource;

16. The base station of claim 15, wherein the first resource set PRB occupancy generating unit comprises:

17. The base station of claim 16, wherein the remaining resource allocation sub-module comprises:

a first starting unit, configured to determine a first starting PRB location corresponding to the first resource set using the remaining PRBs;

18. The base station of claim 17, wherein the first partition unit comprises:

19. The base station of claim 18, wherein the first partition unit further comprises:

20. The base station of claim 17, wherein the second partition unit comprises:

21. The base station of claim 20, wherein the second partition unit further comprises:

22. The base station of claim 13, wherein the subscriber access module comprises: