CN102404092B - Resource allocation and determination method and equipment both for uplink control channel - Google Patents

Abstract

The invention discloses a resource allocation and determination method and equipment both for an uplink control channel, which comprise steps that a base station allocates physical uplink control channel resources which are used by user equipment in a physical uplink control channel format (3) to perform acknowledgement character/negative acknowledge (ACK)/(NAK) feedback, and the base station inform the user equipment of physical uplink control channel resources which are used by the user equipment through explicit signaling. The user equipment ensures the physical uplink control channel resources which are used for performing the ACK/NAK feedback in the physical uplink control channel form (3) according the explicit signaling. When the user equipment transmits in the physical uplink control channel form (3), the method and the equipment can enable resources which are capable of supporting to transmit exploration reference signals and ACK/NAK in the same subframe and resources which are not capable of supporting to transmit exploration reference signals and ACK/NAK in the same subframe to be identical in multiplexing volume.

Description

Method and equipment for allocating and determining uplink control channel resources

Technical Field

The present invention relates to wireless communication technologies, and in particular, to a method and a device for configuring and determining uplink control channel resources.

Background

In 3GPP Rel-10 (release 10) LTE-a (Long Term Evolution-Advanced), a UE (User Equipment) may use PUCCH format 3(PUCCH format 3; PUCCH: Physical Uplink Control Channel) (i.e., DFT-S-OFDM, Discrete Fourier Transform-Spread-Orthogonal frequency division Multiplexing) to feed back multi-bit ACK/NACK (Acknowledgement/Negative Acknowledgement). The PUCCH format3 supports a plurality of UEs on one PRB (physical resource block) by using a Code Division Multiplexing (CDM) scheme. With QPSK (quadrature Phase Shift Keying) modulation, each UE can transmit 48 coded bits in one subframe. Wherein [ D1, D2] represents data symbols, wherein D1 and D2 may be the same data symbols or different data symbols, and each data symbol Di contains 24 coded bits. In each slot, Spreading is performed using an orthogonal sequence with SF of 5 (Spreading Factor), and the same Spreading sequence may be used in different slots, or different Spreading sequences may be used, as shown in fig. 1, which is a schematic diagram of 3GPP Rel-10LTE-a PUCCH format3 (normal CP), as shown in fig. 1. At this time, a PRB pair can carry up to 5 UEs for multiplexing transmission.

A User Equipment (UE) periodically transmits an SRS (Sounding Reference signal). The base station may configure whether the UE supports SRS transmission in the same subframe as the multi-bit ACK/NAK. If simultaneous transmission is supported, a short PUCCH format3 (truncated PUCCH format 3) is used to transmit multi-bit ACK/NAK, where the short PUCCH is not transmitted on the last OFDM symbol in the subframe, and the UE performs time domain spreading on data using an orthogonal sequence with a length of 5 in slot 0, but performs spreading using an orthogonal sequence with a length of 4 in slot 1, as shown in fig. 2, fig. 2 is a schematic diagram of 3GPP Rel-10LTE-a short PUCCH format 3. Limited by the spreading sequence on the second slot, at this time, only 4 UEs can be carried on one PRB pair at most.

The defects of the prior art are as follows:

in 3GPP Rel-10LTE-a, a UE needs to periodically send sounding reference signal Symbol (SRS). In this case, the base station may configure whether the UE supports SRS transmission in the same subframe as the ACK/NAK.

If the base station is configured to support simultaneous transmission, the UE may transmit a multi-bit ACK/NAK using the short PUCCH format3 in the subframe in which the SRS is transmitted. However, since the PUCCH format3 supports multi-user multiplexing transmission by using time domain spreading, the length of the orthogonal spreading sequence selected at this time directly affects the number of multiplexed users on one PRB pair, and when the lengths of the orthogonal spreading sequences in two slots are not selected in the same way, the resource multiplexing capacities supporting SRS and ACK/NAK transmission in the same subframe and not supporting SRS and ACK/NAK transmission in the same subframe may be different when PUCCH format3 is used for transmission.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide an uplink control channel resource allocation method and a base station, and an uplink control channel resource determination method and user equipment. The method is used for solving the problem that the resource multiplexing capacities of SRS and ACK/NAK which are supported to be transmitted in the same subframe and SRS and ACK/NAK which are not supported to be transmitted in the same subframe are inconsistent when PUCCH format3 is used for transmission.

The embodiment of the invention provides a resource allocation method of an uplink control channel, which comprises the following steps:

the base station configures UE to support SRS and ACK/NAK to be transmitted in the same subframe;

a base station configures PUCCH resources used by UE when the UE uses PUCCH format3 for ACK/NAK feedback;

the base station informs the UE of PUCCH resources used by the UE through explicit signaling.

The embodiment of the invention provides a method for determining uplink control channel resources, which comprises the following steps:

the method comprises the steps that UE receives explicit signaling sent by a base station, wherein the explicit signaling is used for informing the UE of PUCCH resources used when the UE feeds back ACK/NAK by using PUCCH format 3;

and the UE determines to use the PUCCH resource fed back with the ACK/NAK by the PUCCH format3 according to the explicit signaling.

An embodiment of the present invention provides a base station, including:

the first configuration module is used for configuring the UE to support the SRS and the ACK/NAK to be transmitted in the same subframe;

a second configuration module, configured to configure a PUCCH resource used by the UE when performing ACK/NAK feedback using PUCCH format 3;

and the notification module is used for notifying the PUCCH resources used by the UE to the UE through explicit signaling.

An embodiment of the present invention provides a user equipment, including:

a receiving module, configured to receive an explicit signaling sent by a base station, where the explicit signaling is used to notify a UE of a PUCCH resource used when the UE feeds back ACK/NAK using PUCCH format 3;

and the determining module is used for determining the PUCCH resources using the PUCCH format3 to feed back the ACK/NAK according to the explicit signaling.

The invention has the following beneficial effects:

because the base station side is in the uplink control channel resource configuration, when the base station configures UE to support SRS and ACK/NAK to be transmitted in the same subframe, the base station configures PUCCH resources used by the UE when the UE uses PUCCH format3 for ACK/NAK feedback according to the number of UE multiplexed in one PRB pair, or the number of UE multiplexed in one PRB pair and whether the UE needs to transmit the SRS and the ACK/NAK in the same subframe; and informs the UE of PUCCH resources used by the UE through explicit signaling. And the UE side can transmit the SRS according to the notified PUCCH resource. Therefore, when the UE uses PUCCHfomat 3 transmission, the resource multiplexing capacity supporting the SRS and the ACK/NAK to be transmitted in the same subframe and the resource multiplexing capacity not supporting the SRS and the ACK/NAK to be transmitted in the same subframe can be consistent.

Drawings

FIG. 1 is a diagram of a 3GPP Rel-10LTE-A PUCCH format3 (conventional CP) in the background art;

FIG. 2 is a diagram of a 3GPP Rel-10LTE-A short PUCCH format3 in the background art;

fig. 3 is a schematic flow chart illustrating an implementation of a method for allocating uplink control channel resources at a base station side according to an embodiment of the present invention;

fig. 4 is a schematic diagram of PUCCH resource reservation in the embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating an implementation of a method for determining uplink control channel resources on a UE side according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a base station structure according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a ue in an embodiment of the present invention.

Detailed Description

Since the PUCCH format3 supports multi-user multiplexing transmission in a time domain spreading manner, the length of the selected orthogonal spreading sequence directly affects the number of multiplexing users on one PRB pair. According to the embodiment of the invention, a scheme for configuring and determining the PUCCH format3 resource is provided, and the scheme can effectively solve the problem of inconsistent multiplexing capacity of the PUCCH format3 resource in the SRS subframe and the non-SRS subframe. The following describes embodiments of the present invention with reference to the drawings.

In order to facilitate understanding of how to implement the present invention, in the description, the implementation of the UE and the base station will be described separately, and then the implementation of the UE and the base station in cooperation will be described in the embodiment, but this does not mean that the UE and the base station must be implemented in cooperation, and actually, when the UE and the base station are implemented separately, the UE and the base station also solve the problems of the UE side and the base station side separately, and only when the UE and the base station are used in combination, a better technical effect is obtained.

In the embodiment of the present invention, dynamic and semi-static configuration and determination methods are provided, and two embodiments are mainly provided, and these four methods are also described in combination in the following implementation processes.

In the implementation of the present invention, a specific example will be described in which the current orthogonal sequence with a length of 5 and the current orthogonal sequence with a length of 4 are used for spreading, that is, a specific example will be described in which the problem of inconsistent multiplexing capacity when 5 UEs are supported in one PRB pair is solved, however, the embodiment of the present invention may be extended to N, I, K in which the number of other UEs is supported in one PRB pair, for example, a natural number greater than 1, where I is greater than K. In the implementation, 5 UEs are supported in one PRB as an example, because the current maximum supported number is 5 UEs, the number of supported UEs is 5, 4 here; however, theoretically, other UE numbers may be used, as long as the problem of inconsistent multiplexing capacity caused by inconsistent multiplexing UE numbers before and after truncation can be overcome, so the following embodiments are only used to teach those skilled in the art how to implement the present invention specifically, but do not mean that the following embodiments can only be used in a case of supporting 5 UEs in one PRB, and the implementation process may determine the corresponding selected number according to practical needs.

For convenience of description, the SRS subframe in this embodiment means that the UE needs to transmit SRS and ACK/NAK in the same subframe, and the non-SRS subframe means that the UE does not need to transmit SRS and ACK/NAK in the same subframe.

Fig. 3 is a schematic flowchart of an implementation process of a method for configuring uplink control channel resources on a base station side, as shown in the figure, the method may include the following steps when configuring PUCCH resources:

step 301, a base station configures UE to support SRS and ACK/NAK transmission in the same subframe;

step 302, the base station configures PUCCH resources used by the UE when the PUCCH format3 is used for ACK/NAK feedback;

step 303, the base station notifies the UE of the PUCCH resource used by the UE through explicit signaling.

In implementation, the base station may configure PUCCH resources used by the UE when performing ACK/NAK feedback using PUCCH format3 according to the number of UEs multiplexed in one PRB pair, or the number of UEs multiplexed in one PRB pair and whether the UE needs to transmit SRS and ACK/NAK in the same subframe.

In an implementation, the resource region for transmission using PUCCH format3 may be adjacent to the resource region for transmission using PUCCHformat 1/1a/1b, and may not share the same PRB pair.

Fig. 4 is a schematic diagram of PUCCH resource reservation, where the relationship between PUCCH format3 and format1/1a/1b resource region is as shown in fig. 4, a part of resources are semi-statically reserved for transmitting PUCCH format3 in the system, and the resources of PUCCH format3 are adjacent to PUCCH format1/1a/1b but do not share the same PRB pair.

Fig. 5 is a schematic implementation flow diagram of a method for determining uplink control channel resources on a UE side, as shown in the figure, the method may include the following steps when determining PUCCH resources:

step 501, the UE receives an explicit signaling sent by a base station, where the explicit signaling is used to notify the UE of a PUCCH resource used when the UE feeds back ACK/NAK by using PUCCH format 3;

step 502, the UE determines to use the PUCCH resource fed back with ACK/NAK by PUCCH format3 according to the explicit signaling.

In implementation, when the base station may notify the PUCCH resource used by the UE to the UE through explicit signaling, the base station performs notification according to a notification rule preset by the UE. And the UE can determine to use the PUCCH resource fed back with the ACK/NAK by the PUCCH format3 according to the explicit signaling according to a notification rule preset by the base station.

Specifically, the base station may notify, through display signaling (RRC (Radio Resource Control) signaling or DL grant), each UE that uses the PUCCH format3 for ACK/NAK feedback of the PUCCH Resource used by the UE, where the Resource is a PRB pair number and an orthogonal sequence number used for transmitting pucchnformat 3.

The base station informs the UE of the PUCCH resource used by the UE through explicit signaling, and the UE determines to use the PUCCH resource for feeding back ACK/NAK in PUCCH format3 according to the explicit signaling in 2 ways as follows.

In a first mode

In this approach, a maximum of 4 UEs are multiplexed on each PRB pair. I.e., whether for SRS or non-SRS subframes, there are only 4 available spreading sequences in each slot. That is, when the number of UEs multiplexed in one PRB pair is not greater than 4, the resource configuration and determination may be performed in one of the following manners or a combination thereof.

In practice, as described above, 4 UEs are taken as an example for explanation, and in practice, the UE may select among the natural number N larger than 1 as needed.

The configuration at the base station side may be:

method 1, UE is informed of PRB pair number transmitted by PUCCH format3 by RRC signaling, and dl grant is usedBit informs UE of the used orthogonal sequence number;

mode 2, informing the starting position of the resource region transmitted by PUCCH format3 in the UE system by RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3

Mode 3, informing the starting position of the resource region transmitted by PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using PUCCH format3And used in DLGrantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

The determination method at the UE side may be:

mode 1, the explicit signaling is RRC signaling and DL grant, the UE may determine, according to the notification of the RRC signaling, a PRB pair number for the UE to transmit using PUCCH format3, and according to the number used in DL grantBit notification determines an orthogonal sequence number used by the UE;

mode 2, the explicit signaling is RRC signaling, and the UE may determine the starting position of the resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

Mode 3, where the explicit signaling is RRC signaling and DL grant, the UE may determine the starting position of the resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd a set of resource numbers for transmission using PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M. In implementation, the UE may be based on the starting location as followsAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

$n_{\mathrm{oc}}=n_{\mathrm{PUCCH}}^{\left(3\right)}\mathrm{mod}4.$

In practice, N is 4, L is 2 and M is 4.

In specific implementation, as for the mode 1, the UE may be notified of the PRB pair number of the PUCCH format3 through RRC signaling, and the number is used in the DLgrantThe bits inform the orthogonal sequence numbers used by the UE.

For mode 1, the starting Position (PRB) of PUCCH format3 resource region in UE system can be informed through RRC signalingAnd PUCCH format3 resource number used by the UEThe UE can calculate the PRB pair number m and the orthogonal sequence number n for transmitting the PUCCH format3 through the 2 parameters_ocThe amount of the solvent to be used is, for example, wherein n is on different time slots_ocMay be different, i.e. n used in slot 1_ocMay be based on n in slot 0_ocObtained with a certain offset, but with the same m.

For mode 1, the starting Position (PRB) of PUCCH format3 resource region in UE system can be informed through RRC signalingAnd a set of PUCCH format3 resource numbersUse in DL grantThe bit informs the UE which resource in the resource number group is specifically used. The UE will be able to see way 2 according toAndcalculating to obtain PRB pair number m and orthogonal sequence number n of transmission PUCCH format3_oc。

In mode one, the same resource numberPRB pair number m and orthogonal sequence number n corresponding to SRS subframe and non-SRS subframe_ocAre the same. If the base station performs semi-static resource allocation, the PRB pair and the orthogonal sequence used by the UE to transmit the PUCCH format3 in the SRS subframe and the non-SRS subframe are the same.

Mode two

In this way, a maximum of 5 UEs are multiplexed on each PRB pair in the non-SRS subframe, and a maximum of 4 UEs are multiplexed on each PRB pair in the SRS subframe. That is, when the UE does not need to transmit the SRS and the ACK/NAK in the same subframe, the number of the UEs multiplexed in one PRB pair is not greater than 5, and when the UE needs to transmit the SRS and the ACK/NAK in the same subframe, and the number of the UEs multiplexed in one PRB pair is not greater than 4, the resource configuration and the determination may be performed in one of the following manners or a combination thereof.

In practice, as described above, 4 UEs and 5 UEs are taken as examples, and in fact, the UE may be selected from the natural number I, K (I is greater than K) greater than 1 as needed.

Accordingly, the configuration at the base station side may be:

method 4, the UE is informed of the PRB pair number transmitted by PUCCH format3 by RRC signaling, and the number is used in DLgrantBit informs UE of the used orthogonal sequence number;

mode 5, informing the starting position of the resource region transmitted by PUCCH format3 in the UE system by RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3

Mode 6, informing the starting position of the resource region transmitted by PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

In practice, I is 5, K is 4, J is 3, and M is 4.

Accordingly, the determination method at the UE side may be:

mode 4, the explicit signaling is RRC signaling and DL grant, the UE notifies the UE of PRB pair number transmitted by PUCCH format3 according to the RRC signaling, and the UE transmits PRB pair number according to DL grant Bit notification determines an orthogonal sequence number used by the UE;

mode 5, the explicit signaling is RRC signaling, and the UE determines the starting position of the resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

Mode 6, the explicit signaling is RRC signaling and DL grant, and the UE determines the starting position of the resource region transmitted by PUCCH format3 in the system according to the notification of the RRC signalingAnd a set of resource numbers for transmission using PUCCH format3According to the use in DLgrantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M.

In practice, according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocThe method comprises the following steps: the UE selects a corresponding mode according to whether SRS and ACK/NAK are required to be transmitted in the same subframe or not according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc。

In implementation, the UE may be based on the starting location as followsAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

The SRS subframe indicates a mode used when the UE needs to transmit SRS and ACK/NAK in the same subframe, and the non-SRS subframe indicates a mode used when the UE does not need to transmit SRS and ACK/NAK in the same subframe.

In specific implementation, as for the mode 4, the UE may be notified of the PRB pair number for transmitting the PUCCH format3 through RRC signaling, and the number is used in the DLgrantThe bits inform the orthogonal sequence numbers used by the UE.

For mode 5, the starting Position (PRB) of PUCCH format3 resource region in UE system can be informed through RRC signalingAnd PUCCH format3 resource number used by the UEThe UE can calculate the PRB pair number m and the orthogonal sequence number n for transmitting the PUCCH format3 through the 2 parameters_ocFor example:

wherein n is on different time slots_ocMay be different, i.e. n used in slot 1_ocMay be based on n in slot 0_ocObtained with a certain offset, but with the same m. .

For mode 6, the starting Position (PRB) of PUCCH format3 resource region in UE system can be informed through RRC signalingAnd a set of PUCCH format3 resource numbersUse in DL grantThe bit informs the UE which resource in the resource number group is specifically used. The UE will be able to follow in the manner described in manner 5Andcalculating to obtain PRB pair number m and orthogonal sequence number n of transmission PUCCH format3_oc。

In the second mode, the same resource numberPRB pair number m and orthogonal sequence number n corresponding to SRS subframe and non-SRS subframe_ocIs different. If the base station performs semi-static resource allocation, the PRB pair and the orthogonal sequence used by the UE for transmitting the PUCCH format3 in the SRS subframe and the non-SRS subframe are different.

Based on the same inventive concept, the embodiments of the present invention also provide a base station and a user equipment, and because the principles of these devices for solving the problems are similar to the uplink control channel resource allocation method and the uplink control channel resource determination method, the implementation of these devices may refer to the implementation of the methods, and repeated parts are not described again.

Fig. 6 is a schematic structural diagram of a base station, as shown in the figure, the base station may include:

a first configuration module 601, configured to configure the UE to support SRS and ACK/NAK to be transmitted in the same subframe;

a second configuring module 602, configured to configure PUCCH resources used by the UE when performing ACK/NAK feedback by using PUCCH format 3;

a notifying module 603, configured to notify the UE of the PUCCH resource used by the UE through explicit signaling.

In implementation, the second configuration module may be further configured to configure PUCCH resources used by the UE when performing ACK/NAK feedback using PUCCH format3 according to the number of UEs multiplexed in one PRB pair, or whether the number of UEs multiplexed in one PRB pair and the UE need to transmit SRS and ACK/NAK in the same subframe.

In an implementation, the notification module may be further configured to notify, according to a notification rule preset by the UE, the UE of the PUCCH resource used by the UE through explicit signaling.

In an implementation, the notification module may include one or a combination of the following elements:

a first notifying unit configured to notify, by RRC signaling, a PRB pair number for transmission by the UE using PUCCH format3, and use the PRB pair number in the DL grantBit informs UE of the number of the used orthogonal sequence, and N is a natural number greater than 1;

a second informing unit for informing a starting position of a resource region for transmission using PUCCH format3 in the UE system by RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3

A third notifying unit, configured to notify the starting position of the resource region transmitted by using PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using PUCCH format3And used in DLGrantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

In an implementation, the notification module may be further configured to use 4 as N, 2 as L, and 4 as M.

In implementation, the notification module may also include one or a combination of the following units:

a fourth notifying unit configured to notify, by RRC signaling, a PRB pair number for the UE to transmit using PUCCH format3, and use the PRB pair number in the DL grantBit informs UE of the number of the used orthogonal sequence, and I is a natural number greater than 1;

a fifth informing unit, configured to inform a starting position of a resource region for transmission using PUCCH format3 in the UE system by RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3

A sixth notifying unit, configured to notify the starting position of the resource region transmitted by using PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

In an implementation, the notification module may be further configured to employ 5 as I, 3 as J, and 4 as M.

In an implementation, the second configuration module may be further configured to configure the resource region for transmission using PUCCH format3 to be adjacent to the resource region for transmission using PUCCH format1/1a/1b, and not share the same PRB pair.

Fig. 7 is a schematic structural diagram of a UE, as shown in the figure, the UE may include:

a receiving module 701, configured to receive an explicit signaling sent by a base station, where the explicit signaling is used to notify a UE of a PUCCH resource used when the UE feeds back ACK/NAK using PUCCH format 3;

a determining module 702, configured to determine, according to the explicit signaling, a PUCCH resource using PUCCH format3 to feed back ACK/NAK.

In an implementation, the determining module may be further configured to determine, according to a notification rule preset by the base station, a PUCCH resource for feeding back ACK/NAK using PUCCH format3 according to the explicit signaling.

In an implementation, the determining module may include one or a combination of the following units:

a first determination unit for determining the explicit typeWhen the signaling is RRC signaling and DL grant, determining the PRB pair number transmitted by the UE by using PUCCH format3 according to the notification of the RRC signaling, and according to the PRB pair number used in the DL grantBit notification is carried out to determine the number of an orthogonal sequence used by the UE, wherein N is a natural number greater than 1;

a second determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using PUCCH format3 in the system when the explicit signaling is the RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

A third determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using PUCCH format3 in the system when the explicit signaling is RRC signaling and DL grantAnd a set of resource numbers for transmission using PUCCH format3According to the usage in DL grantBit notification determination of UE usage resource number groupWhich resource in the list is numbered, and is based on the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M.

In an implementation, the second determining unit and/or the third determining unit may be further configured to determine the start position according to the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

$n_{\mathrm{oc}}=n_{\mathrm{PUCCH}}^{\left(3\right)}\mathrm{mod}N.$

In an implementation, the determining module may be further configured to use 4 as N, 2 as L, and 4 as M.

In an implementation, the determining module may also include one or a combination of the following units:

a fourth determining unit, configured to notify the user according to the RRC signaling when the explicit signaling is the RRC signaling and the DL grantDetermining the PRB pair number transmitted by the UE through PUCCH format3, and according to the PRB pair number used in the DLgrantBit notification determines the number of an orthogonal sequence used by the UE, wherein I is a natural number greater than 1;

a fifth determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using PUCCH format3 in the system when the explicit signaling is the RRC signalingAnd the resource number of the UE transmitting by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

A sixth determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using PUCCH format3 in the system when the explicit signaling is RRC signaling and DL grantAnd a set of resource numbers for transmission using PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M.

In implementation, the fifth determining unit and/or the sixth determining unit may be further configured to select a corresponding manner according to whether SRS needs to be transmitted in the same subframe and ACK/NAK needs to be transmitted according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc。

In an embodiment, the fifth determining unit and/or the sixth determining unit may be further configured to determine the start position according to the starting position in the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

The SRS subframe indicates a mode used when the UE needs to transmit SRS and ACK/NAK in the same subframe, and the non-SRS subframe indicates a mode used when the UE does not need to transmit SRS and ACK/NAK in the same subframe.

In an implementation, the determination module may be further configured to employ 5 as I, 4 as K, 3 as J, and 4 as M.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

It should be noted that: the above-described embodiments are merely examples and are intended to teach one skilled in the art how to make and use the invention, and it is intended that the invention encompass the following modifications and variations:

each subframe may contain 1, 2, or more slots.

The number of OFDM symbols in each slot may be different from 7, for example, there are 6 OFDM symbols per slot for extended CP (Cyclic Prefix) in 3GPP LTE.

The RS (reference signal) OFDM symbol of each slot may be 1 or more.

The positions of the RS OFDM symbol and the data OFDM symbol per slot may be different from those of the embodiment of the present invention.

The plurality of OFDM symbols corresponding to each symbol Di with CDM in the time domain may be different from the example in the embodiment of the present invention.

Each symbol Di may be obtained by OFDM modulation or may be obtained by single carrier OFDM (single carrier OFDM) modulation.

The PRB may be composed of more or less than 12 REs (resource elements), and the size of each RE in the frequency domain may be different from 15 KHz.

The embodiment of the present invention takes the example of supporting 5 UEs in one PRB pair, but it is obvious that the technical solution provided in the embodiment of the present invention can also be extended to support another number of UEs in one PRB pair.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, 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, 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.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus 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 in those 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 invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (24)

1. A method for allocating uplink control channel resources is characterized by comprising the following steps:

a base station configures User Equipment (UE) to support Sounding Reference Signals (SRS) and ACK/NAK to be transmitted in the same subframe;

a base station configures Physical Uplink Control Channel (PUCCH) resources used by UE when the UE uses physical uplink control channel format 3PUCCH format3 for ACK/NAK feedback;

a base station informs a User Equipment (UE) of PUCCH resources used by the UE through explicit signaling;

when the base station notifies the PUCCH resources used by the UE to the UE through an explicit signaling, the base station notifies the UE according to a notification rule preset by the UE;

the base station configures the PUCCH resources used by the UE when the UE uses the PUCCH format3 for ACK/NAK feedback according to the number of the UE multiplexed in one physical resource block PRB pair, or whether the number of the UE multiplexed in one PRB pair and the UE need to transmit the SRS and the ACK/NAK in the same subframe.

2. The method of claim 1, wherein the number of multiplexed UEs is not greater than N, N is a natural number greater than 1, and the notification rule preset by the UE comprises one or a combination of the following ways:

informing the UE of the physical resource Block PRB pair number transmitted by PUCCH format3 by radio resource control RRC signaling, and using the PRB pair number in the Downlink scheduling information DL grantBit informs UE of the used orthogonal sequence number;

informing a UE of a starting position of a resource region in a system transmitted using PUCCH format3 with RRC signalingAnd resource number of the UE transmitted by using PUCCH format3

Informing a UE of a starting position of a resource region in a system transmitted using PUCCH format3 with RRC signalingAnd a set of resource numbers for transmission using the PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

3. The method of claim 2, wherein N is 4, L is 2, and M is 4.

4. The method of claim 1, wherein when the UE does not need to transmit the SRS and the ACK/NAK in the same subframe, the number of UEs multiplexed in one PRB pair is not greater than I, when the UE needs to transmit the SRS and the ACK/NAK in the same subframe, the number of UEs multiplexed in one PRB pair is not greater than K, I, K is a natural number greater than 1, and I is greater than K, and the notification rule preset by the UE includes one or a combination of the following ways:

the UE is informed of the PRB pair number transmitted by using PUCCH format3 by RRC signaling, and the PRB pair number is used in DLgrantBit informs UE of the used orthogonal sequence number;

informing a UE of a starting position of a resource region in a system transmitted using PUCCH format3 with RRC signalingAnd resource number of the UE transmitted by using PUCCH format3

Informing a UE of a starting position of a resource region in a system transmitted using PUCCH format3 with RRC signalingAnd a set of resource numbers for transmission using the PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

5. The method of claim 4, wherein I is 5, K is 4, J is 3, and M is 4.

6. The method of any of claims 1 to 5, wherein a resource region for transmission using PUCCH format3 is adjacent to a resource region for transmission using PUCCH format1/1a/1b and does not share a same PRB pair.

7. A method for determining uplink control channel resources is characterized by comprising the following steps:

the UE receives explicit signaling sent by a base station, wherein the explicit signaling is used for notifying the UE of PUCCH resources used when the UE feeds back ACK/NAK by using PUCCH format 3;

the UE determines PUCCH resources for feeding back ACK/NAK by using PUCCH format3 according to the explicit signaling;

when the UE determines to use the PUCCH resource fed back by the ACK/NAK through the PUCCH format3 according to the explicit signaling, the UE determines according to a notification rule preset by the base station;

the number of the UE multiplexed in one PRB pair is not more than N, N is a natural number more than 1, and the notification rule preset by the base station comprises one of the following modes or the combination of the following modes:

the explicit signaling is RRC signaling and DL grant, the UE determines the PRB pair number transmitted by the UE by using PUCCH format3 according to the notification of the RRC signaling, and the UE transmits the PRB pair number according to the DL grantBit notification determines the orthogonal sequence number used by the UE, N being largeA natural number at 1;

the explicit signaling is RRC signaling, and the UE determines the starting position of a resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd resource number of the UE transmitted by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

The explicit signaling is RRC signaling and DL grant, and the UE determines the starting position of a resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd a set of resource numbers for transmission using the PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M; or,

when the UE does not need to transmit the SRS and the ACK/NAK in the same subframe, the number of the UE multiplexed in one PRB pair is not more than I, when the UE needs to transmit the SRS and the ACK/NAK in the same subframe, the number of the UE multiplexed in one PRB pair is not more than K, I, K is a natural number more than 1, and I is more than K, and the notification rule preset by the base station comprises one or the combination of the following modes:

the explicit signaling is RRC signaling and DL grant, the UE determines the PRB pair number transmitted by the UE by using PUCCH format3 according to the notification of the RRC signaling, and the UE transmits the PRB pair number according to the DL grantBit notification determines the number of an orthogonal sequence used by the UE, wherein I is a natural number greater than 1;

the explicit signaling is RRC signaling, and the UE determines the starting position of a resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingAnd resource number of the UE transmitted by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

The explicit signaling is RRC signaling and DL grant, and the UE determines the start of a resource region transmitted by using PUCCH format3 in the system according to the notification of the RRC signalingStarting positionAnd a set of resource numbers for transmission using the PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M.

8. The method of claim 7, wherein the UE is based on the starting position in the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

9. The method of claim 7 or 8, wherein N is 4, L is 2, and M is 4.

10. The method of claim 7, wherein the starting position is based onAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocThe method comprises the following steps:

the UE selects a corresponding mode according to whether SRS and ACK/NAK are required to be transmitted in the same subframe or not according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc。

11. The method of claim 10, wherein the UE is based on the starting location in the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

The SRS subframe indicates a mode used when the UE needs to transmit SRS and ACK/NAK in the same subframe, and the non-SRS subframe indicates a mode used when the UE does not need to transmit SRS and ACK/NAK in the same subframe.

12. The method of claim 11, wherein I is 5, K is 4, J is 3, and M is 4.

13. A base station, comprising:

the first configuration module is used for configuring the UE to support the SRS and the ACK/NAK to be transmitted in the same subframe;

a second configuration module, configured to configure PUCCH resources used by the UE when performing ACK/NAK feedback using PUCCH format 3;

a notification module, configured to notify a UE of a PUCCH resource used by the UE through explicit signaling;

the notification module is further used for notifying the UE of the PUCCH resources used by the UE through an explicit signaling according to a notification rule preset by the UE;

the second configuration module is further configured to configure PUCCH resources used by the UE when performing ACK/NAK feedback using PUCCH format3 according to the number of UEs multiplexed in one PRB pair, or whether the number of UEs multiplexed in one PRB pair and the UE need to transmit SRS and ACK/NAK in the same subframe.

14. The base station of claim 13, wherein the notification module comprises one or a combination of the following elements:

a first notifying unit configured to notify, by RRC signaling, a PRB pair number for transmission by the UE using PUCCH format3, and use the PRB pair number in the DL grantBit informs the UE of the orthogonal sequence number used, N isA natural number greater than 1;

a second informing unit for informing the starting position of the resource region transmitted by using PUCCH format3 in the UE system by RRC signalingAnd resource number of the UE transmitted by using PUCCH format3

A third notifying unit, configured to notify the starting position of the resource region transmitted by using the PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using the PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

15. The base station of claim 14, wherein the notification module is further configured to employ 4 as N, 2 as L, and 4 as M.

16. The base station of claim 13, wherein the notification module comprises one or a combination of the following elements:

a fourth notifying unit, configured to notify, by RRC signaling, the PRB pair number for the UE to transmit using PUCCH format3, and use the PRB pair number in the DL grantBit-signaled orthogonal sequence coding used by UENumber, I is a natural number greater than 1;

a fifth informing unit, configured to inform, by RRC signaling, a starting position of a resource region in the UE system that is transmitted using the PUCCH format3And resource number of the UE transmitted by using PUCCH format3

A sixth notifying unit, configured to notify the starting position of the resource region transmitted by using the PUCCH format3 in the UE system by RRC signalingAnd a set of resource numbers for transmission using the PUCCH format3And used in DL grantAnd the bit informs the UE which resource number in the resource number group is used, and M is the number of the resources.

17. The base station of claim 16, wherein the notification module is further configured to employ 5 as I, 3 as J, and 4 as M.

18. The base station of any of claims 13 to 17, wherein the second configuring module is further configured to configure a resource region for transmission using PUCCH format3 to be adjacent to a resource region for transmission using PUCCH format1/1a/1b and not share the same PRB pair.

19. A user device, comprising:

a receiving module, configured to receive an explicit signaling sent by a base station, where the explicit signaling is used to notify a UE of a PUCCH resource used when the UE feeds back ACK/NAK using a PUCCH format 3;

a determining module, configured to determine, according to the explicit signaling, a PUCCH resource for feeding back ACK/NAK using PUCCH format 3;

the determining module is further configured to determine, according to the explicit signaling, a PUCCH resource for feeding back ACK/NAK by using PUCCH format3 according to a notification rule preset in the base station;

the number of the UE multiplexed in one PRB pair is not more than N, N is a natural number more than 1, and the determining module comprises one or a combination of the following units:

a first determining unit, configured to determine, according to notification of the RRC signaling, a PRB pair number for transmission by the UE using the PUCCH format3 when the explicit signaling is RRC signaling and a DL grant, and determine, according to the PRB pair number used in the DL grantBit notification is carried out to determine the number of an orthogonal sequence used by the UE, wherein N is a natural number greater than 1;

a second determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using the PUCCH format3 in the system when the explicit signaling is the RRC signalingAnd resource number of the UE transmitted by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

A third determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using the PUCCH format3 in the system when the explicit signaling is the RRC signaling and the DL grantAnd a set of resource numbers for transmission using the PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M; or,

when the UE does not need to transmit the SRS and the ACK/NAK in the same subframe, the number of the UE multiplexed in one PRB pair is not more than I, when the UE needs to transmit the SRS and the ACK/NAK in the same subframe, the number of the UE multiplexed in one PRB pair is not more than K, I, K is a natural number larger than 1, and I is larger than K, and the determining module comprises one or a combination of the following units:

a fourth determining unit, configured to determine, according to the notification of the RRC signaling, a PRB pair number for the UE to transmit using the PUCCH format3 when the explicit signaling is RRC signaling and a DL grant, and determine, according to the PRB pair number used in the DL grantBit notification determines the orthogonal sequence number used by the UE, I being greater than 1Counting;

a fifth determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using the PUCCH format3 in the system when the explicit signaling is the RRC signalingAnd resource number of the UE transmitted by using PUCCH format3And according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc；

A sixth determining unit, configured to determine, according to the notification of the RRC signaling, a starting position of a resource region transmitted by using the PUCCH format3 in the system when the explicit signaling is the RRC signaling and the DL grantAnd a set of resource numbers for transmission using the PUCCH format3According to the usage in DL grantBit notification determines which resource number in the resource number group the UE uses, and according to the starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_ocWherein M is the number of resources, and X is one of the values of M.

20. The user equipment according to claim 19, characterized in that the second determining unit and/or the third determining unit is further adapted to determine the starting position based on the starting position in the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

21. The user equipment of claim 20, wherein the determining module is further configured to employ 4 as N, 2 as L, and 4 as M.

22. The UE of claim 19, wherein the fifth determining unit and/or the sixth determining unit is further configured to select a corresponding manner according to whether SRS and ACK/NAK need to be transmitted in the same subframe according to a starting positionAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc。

23. The user equipment according to claim 22, characterized in that the fifth determining unit and/or the sixth determining unit are further adapted to determine the starting position based on the starting position in the following mannerAnd resource numberingDetermining PRB pair number m and orthogonal sequence number n for transmission using transmission PUCCH format3_oc：

The SRS subframe indicates a mode used when the UE needs to transmit SRS and ACK/NAK in the same subframe, and the non-SRS subframe indicates a mode used when the UE does not need to transmit SRS and ACK/NAK in the same subframe.

24. The user equipment of claim 23, wherein the determining module is further configured to employ I of 5, K of 4, J of 3, and M of 4.