RU2630408C1 - Method and device to determine the resources of the upperlink control channel - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: embodiments of the present invention provide the method for determining upperlink control channel resources, containing: receiving by the user equipment (UE) of the predetermined parameter configured for the displaying method of its extended physical control channel of the downlink (E-PDCCH) by eNB; and determining, by means of UE the upperlink control channel (PUCCH) resources according to the predetermined parameter corresponding to the method for displaying its E-PDCCH and the PUCCH calculation formula.

EFFECT: using the embodiments of the present invention, the PUCCH resource collision of the different UE is reduced or the spectral efficiency of the PUCCH is improved.

13 cl, 21 dwg

Description

Technical field

The present invention relates to communication technologies and, in particular, to a method and apparatus for determining resources of an uplink control channel.

State of the art

; каждая группа последовательностей содержит одну или две базовые последовательности, и ν обозначает индекс базовой последовательности в группе последовательностей, ν=0,1. PUCCH базовая последовательность пользователя определяется индексом u группы последовательностей и индексом ν базовой последовательности в группе последовательностей. Все пользователи в той же соте используют идентичные группы последовательностей, и пользователи в различных сотах используют различные группы последовательностей. Так как различные пользователи в соте используют идентичные индексы групп последовательностей, когда два пользователя занимают идентичные блоки физических ресурсов (PRB) восходящей линии связи, чтобы передавать PUCCH, ортогональность PUCCH в соте может обеспечиваться различными циклическими сдвигами (СS) и/или различными ортогональными покрывающими кодами (ОСС), так чтобы обеспечить относительно низкие межсотовые помехи. И в то же самое время множество пользователей могут занимать идентичные СS и/или ОСС, но занимать различные PRB, чтобы обеспечить их ортогональность. Физический ресурс

, занятый посредством PUCCH, соответствует комбинации СS, ОСС и PRB. Для динамической PDSCH передачи физический ресурс

PUCCH формата 1/1а/1b динамически определяется индексом СЕЕ (элемента канала управления) PDСCH (физического канала управления нисходящей линии связи) планирования PDSCH,

; где

– начальный индекс ССЕ PDСCH, и

– общий параметр соты, который конфигурируется через сигнализацию верхнего уровня. The uplink control channel (PUCCH, physical uplink control channel) is used to convey ACK / NACK feedback (acknowledgment / negative acknowledgment) for a downlink data channel (PDSCH) such as 1 / 1a / 1b PUCCH, and can be used to transfer channel status information (CSI) of a downlink channel, such as PUCCH format 1 / 2a / 2b. In Rel.10, the uplink control channel, PUCCH, accepts the PUCCH sequence CAZAC (constant amplitude zero autocorrelation) as the base sequence, which is divided into 30 groups of sequences, the index of which is denoted by u,

; each sequence group contains one or two base sequences, and ν denotes the index of the base sequence in the sequence group, ν = 0.1. The PUCCH user base sequence is determined by the index u of the sequence group and the index ν of the base sequence in the sequence group. All users in the same cell use identical sequence groups, and users in different cells use different sequence groups. Since different users in a cell use identical sequence group indices when two users occupy identical uplink physical resource blocks (PRBs) to transmit PUCCHs, PUCCH orthogonality in a cell can be achieved by different cyclic shifts (CS) and / or different orthogonal cover codes (OSS) so as to provide relatively low inter-cell interference. And at the same time, many users can occupy identical CS and / or OSS, but occupy different PRBs to ensure their orthogonality. Physical resource

occupied by PUCCH corresponds to a combination of CS, OSS and PRB. For dynamic PDSCH transmission physical resource

PUCCH format 1 / 1A / 1b is dynamically determined by the index CEE (control channel element) PDCH (physical control channel downlink) planning PDSCH,

; Where

- the initial index CCE PDCH, and

- a common cell parameter, which is configured through the upper level signaling.

As an evolution of the EUTRA network (developed universal terrestrial radio access), many new scenarios are emerging, such as a heterogeneous network having identical or different cell IDs. You must enter new characteristics for the data channel and control channel. And for enhanced PDCH, the following content needs to be taken into account:

- ability to support increased control channel capacity;

- ability to support ICIC technology (coordination of inter-cell interference) in the frequency domain;

- the ability to increase spatial reuse of the control channel resource;

- the ability to support beamforming and / or diversity;

- the ability to work on a new type of carrier and subframe MBSFN (single-frequency multicast or broadcast network) and

- the ability to coexist with conventional user equipment (UE) on the same carrier.

Expected features include the ability to plan for frequency selection and reduce inter-cell interference. Based on the above needs, the E-PDCCH (Enhanced PDCCH) can be in the field of a conventional PDSCH (Physical Downlink Shared Channel) and frequency division multiplexed with PDSCH, i.e. for at least one user, E-PDCCH and PDSCH occupy different pairs of blocks of physical resources (PRB pairs), as shown in FIG. To improve the spectral utilization of the E-PDCCH, a single PRB may carry the E-PDCCH of multiple users. The E-PDCCH has two mapping schemes, i.e., localized mapping and distributed mapping, as shown in FIG. For localized mapping, it is expected to obtain a gain in frequency selective scheduling and a gain in frequency selective beamforming, that is, an eNB is capable of transmitting an E-PDCH on a subcarrier having a relatively good channel response. And for distributed display, gain from frequency diversity is expected.

и индекс Е-ССЕ для Е-PDСCH и т.д. Однако следующие проблемы могут существовать в выведении физического ресурса PUCCH:Like ACK / NACK PDSCH feedback scheduled by PDCH, ACK / NACK PDSCH feedback scheduled by E-PDCH can still be carried using PUCCH. The PUCCH physical resource may be dynamically implicitly determined by parameters including at least

and the E-CCE index for the E-PDCH, etc. However, the following problems may exist in deriving the PUCCH physical resource:

этих двух пользователей различны, и являются

и

,

соответственно. В то время как для E-PDCCH, если пользователь 1 использует распределенное отображение, и пользователь 2 использует локализованное отображение, и пользователь 1 и пользователь 2, соответственно, занимают #1 ССЕ в пространстве поиска распределенного отображения и #1 ССЕ в пространстве поиска локализованного отображения, то ресурсы PUCCH

этих двух пользователей идентичны и являются в обоих случаях

, то есть возникает коллизия ресурсов PUCCH. Таким образом, проблема коллизии ресурсов в различных способах отображения должна быть решена для ресурсов PUCCH, которым соответствует E-PDCCH;1) E-PDCCH has two mapping schemes, localized mapping and distributed mapping, their E-CCE indices can be independent; while the PDCCH has only one mapping scheme, and its CCE indices are unified for all users. Assuming that the PDCCH occupies the first three OFDM symbols, the total number of corresponding CCEs is 20, PDCCHs of different users occupy different CCEs from these 20 CCEs, for example, user 1 and user 2 occupy logically neighboring CCEs, user 1 occupies # 11 CCE, and user 2 ranked # 12 CCE, then PUCCH resources

these two users are different, and are

and

,

respectively. Whereas for E-PDCCH, if user 1 uses distributed mapping and user 2 uses localized mapping, both user 1 and user 2, respectively, occupy # 1 CCE in the search space of the distributed display and # 1 CCE in the search space of the localized display then PUCCH resources

these two users are identical and are in both cases

, that is, there is a collision of PUCCH resources. Thus, the problem of resource collisions in various display methods should be solved for the PUCCH resources to which the E-PDCCH corresponds;

этих двух пользователей идентичны, и в обоих случаях являются

, то есть возникает коллизия ресурсов PUCCH. Чтобы решить такую проблему, введение индекса PRB может быть принято во внимание, чтобы неявно вычислить ресурсы PUCCH; и2) with the same display method, a resource collision can probably occur in the PUCCH resources to which the E-PDCCH corresponds. For example, in the localized mapping method, the search space of each user is independently configured, and its E-CCE indices are calculated in the respective user search spaces. Therefore, when the E-PDCCH of two users respectively occupy the resources of identical CCE indices in the corresponding search spaces, for example, both of them occupy # 1 CCE in their search space, then the resources

these two users are identical, and in both cases are

, that is, there is a collision of PUCCH resources. To solve such a problem, the introduction of a PRB index can be taken into account to implicitly compute PUCCH resources; and

3) for the localized mapping method, in order to benefit from frequency selective scheduling, the eNB must transmit the E-PDCCH in the best ranges of the user. Since the best ranges of different users are often not adjacent to each other, it is possible that the difference between the PRB indices displayed by the E-PDCCH of different users can be very large; for example, if the E-PDCCH of user 1 is mapped to the first PRB, and the E-PDCCH of user 2 is mapped to the 37th PRB, then the PUCCH resources to which the two users correspond can be different PRBs. In the existing PUCCH structure, one PRB can carry 3X PUCCH, where X is the maximum number of CSs that can be supported by one PRB. Even though only 2 users are planned users at some point, the resources reserved by the PUCCH are also at least 2 PRBs, which means that the spectral utilization of the PUCCH is very low. This problem is relatively less serious in PDCCH. Since the full PDCCH overhead of all users in a cell at some point can be dynamically indicated by PCFICH (physical channel of the control format indicator) (accepting OFDM (orthogonal frequency division multiplexing) symbol as a minimum unit), although it cannot be adjusted for CCE , the dynamic range of the CCE is effectively limited, thereby avoiding the above problem of the useless use of E-PDCCH.

It should be noted that the above description of the premises of the invention is provided only for a clear and complete explanation of the present invention and for ease of understanding by those skilled in the art. And it should not be understood that the above technical solution is known to specialists in this field of technology, as it is described in the premises of the present invention.

SUMMARY OF THE INVENTION

An object of embodiments of the present invention is to provide a method and apparatus for determining resources of an uplink control channel in order to solve the problem indicated above in the description of the background of the invention.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

receiving by a user equipment (UE) a predetermined parameter configured for a method for displaying its enhanced physical downlink control channel (E-PDCCH) via an eNB; and

determining, by the UE, the resources of its uplink control channel (PUCCH) according to a predetermined parameter corresponding to the display method of its E-PDCCH and the PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

configuring, by the eNB, various predetermined parameters for various E-PDCCH UE mapping methods; and

transmitting, by the eNB, various predetermined parameters to the UE or transmitting a predetermined parameter corresponding to the E-PDCCH of the UE to the UE, so that the UE determines the resources of its uplink control channel (PUCCH) according to a predetermined parameter corresponding to the method of displaying its E- PDCCH, and PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

determining, by the UE, the resources of its PUCCH according to a predetermined parameter configured by the eNB and the PUCCH calculation formula corresponding to the display method of its E-PDCCH.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

configuring, by the eNB, various PUCCH calculation formulas for various E-PDCCH mapping methods of the UE, so that the UE determines its PUCCH resources according to a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to its E-PDCCH mapping method.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

determining, by the UE, the resource starting point of its PUCCH, in accordance with the load of the E-PDCCH and the mapping method of its E-PDCCH; and

determining, by the UE, the resources of its PUCCH in accordance with the starting point of the resources of its PUCCH and the PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

determining the maximum PUCCH resource index, by the UE, dynamically in accordance with the load of the E-PDCCH or dynamically in accordance with the maximum value pre-configured by the upper level; and

determining, by the UE, the resources of its PUCCH, in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

Configuring payload times using the eNB and

the transmission of the payload times via the eNB to the UE, so that the UE determines the payload of its E-PDCCH in accordance with the payload times and the payload of the E-PDCCH in the distributed mapping indicated by the received EPCFICH, determines the maximum resource index of its PUCCH in accordance with the payload of its E-PDCCH and determines the resources of its PUCCH in accordance with the PUCCH calculation formula and the maximum resource index of its PUCCH.

In accordance with an aspect of embodiments of the present invention, there is provided a method for determining resources of an uplink control channel, including:

Configuring a plurality of E-PDCCH payloads via an eNB; and

transmitting, by the eNB, a plurality of E-PDCCH payloads and payload indication information to the UE, so that the UE determines its E-PDCCH payload according to the load indication information, determines the maximum resource index of its PUCCH in accordance with its E- payload PDCCH and determines the resources of its PUCCH in accordance with the formula for calculating PUCCH and the maximum resource index PUCCH.

In accordance with an aspect of embodiments of the present invention, a UE is provided, including:

a receiving module configured to receive a predetermined parameter configured for a method for displaying an extended physical downlink control channel (E-PDCCH) of a UE by an eNB; and

a determination module configured to determine the resources of the uplink control channel (PUCCH) of the UE according to a predetermined parameter corresponding to an E-PDCCH mapping method of the UE and the PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, an eNB is provided, including:

a configuration module configured to configure various predetermined parameters for various display methods of the E-PDCCH UE; and

a transmission module configured to transmit various predetermined parameters to the UE or transmit a predetermined parameter corresponding to the E-PDCCH of the UE to the UE, so that the UE determines the resources of its uplink control channel (PUCCH) in accordance with a predetermined parameter corresponding to the display method its E-PDCCH, and PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, a UE is provided, including:

a determining module configured to determine the PUCCH resources of the UE according to a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to the E-PDCCH of the UE.

In accordance with an aspect of embodiments of the present invention, an eNB is provided, including:

a configuration module configured to configure various PUCCH calculation formulas for various E-PDCCH mapping methods of the UE, so that the UE determines its PUCCH resources in accordance with a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to the display method of its E-PDCCH.

In accordance with an aspect of embodiments of the present invention, a UE is provided, including:

a first determining module, configured to determine the starting point of the PUCCH resources of the UE, in accordance with the E-PDCCH payload and the E-PDCCH UE mapping method; and

a second determination module configured to determine the PUCCH resources of the UE in accordance with the starting point of the PUCCH resources of the UE and the PUCCH calculation formula.

In accordance with an aspect of embodiments of the present invention, a UE is provided, including:

a first determining module configured to determine the maximum PUCCH resource index dynamically in accordance with the E-PDCCH payload or dynamically in accordance with the maximum value pre-configured by the upper level; and

a second determination module configured to determine PUCCH resources in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

In accordance with an aspect of embodiments of the present invention, an eNB is provided, including:

a configuration module configured to configure payload times; and

a transmission module configured to transmit payload times to the UE, so that the UE determines the payload of its E-PDCCH in accordance with the payload times and the E-PDCCH in the distributed mapping indicated by the received EPCFICH determines the maximum resource index of its PUCCH in accordance with the payload of its E-PDCCH and determines the resources of its PUCCH in accordance with the PUCCH calculation formula and the maximum resource index of its PUCCH.

In accordance with an aspect of embodiments of the present invention, an eNB is provided, including:

a configuration module configured to configure a plurality of E-PDCCH payloads; and

a transmission module configured to transmit a plurality of E-PDCCH payloads and payload indication information to the UE, so that the UE determines the payload of its E-PDCCH in accordance with the payload indication information, determines the maximum resource index of its PUCCH in accordance with its payload E-PDCCH and determines the resources of its PUCCH in accordance with the formula for calculating PUCCH and the maximum resource index of its PUCCH.

In accordance with an aspect of embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in the UE, the program instructs the computer to execute a method for determining the resources of the uplink control channel, as described above, in the UE.

In accordance with an aspect of embodiments of the present invention, there is provided a storage medium in which a computer-readable program is stored, the computer-readable program instructing the computer to perform a method for determining resources of an uplink control channel as described above in a UE.

In accordance with an aspect of embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in the eNB, the program instructs the computer to execute a method for determining the resources of the uplink control channel, as described above, in the eNB.

In accordance with an aspect of embodiments of the present invention, there is provided a storage medium in which a computer-readable program is stored, the computer-readable program instructing the computer to perform a method for determining resources of an uplink control channel as described above in an eNB.

An advantage of the embodiments of the present invention is that with the embodiments of the present invention, the collision of PUCCH resources of different UEs is reduced and / or the spectral efficiencies of PUCCH are improved.

With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, and the principle of the present invention and methods of use are indicated. It should be understood that the scope of embodiments of the present invention is not limited to this. Embodiments of the present invention contain many changes, modifications and equivalents within the essence and scope of the terms of the attached claims.

Features that are described and / or illustrated in relation to one embodiment may be used in the same way or in a similar manner in one or more other embodiments and / or in combination with features or instead of features of other embodiments.

It should be noted that the term "contains / containing" when used in this description is used to define these features, integers, steps or components, but does not prevent the presence or addition of one or more other features, integers, steps, components or groups thereof.

Brief Description of the Drawings

Many aspects of the present invention can be better understood with reference to the following drawings. The components in the drawings are not necessarily shown to scale, but instead emphasize a clear illustration of the principles of the present invention. To facilitate illustration and description of some parts of the invention, the corresponding parts of the drawings may be enlarged or reduced. Elements and features depicted in one drawing or in an embodiment of the invention may be combined with elements and features depicted in other drawings or embodiments. Moreover, in the drawings, like reference numerals indicate corresponding parts in different views and can be used to indicate identical or similar parts in more than one embodiment. The drawings show the following:

Figure 1 is a schematic diagram of PDSCH, PDCCH and E-PDCCH;

Figure 2a is a schematic diagram of an E-PDCCH distributed mapping method;

2b is a schematic diagram of a localized E-PDCCH mapping method;

FIG. 3 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 1; FIG.

4 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 2;

5 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 3;

6 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 4;

7 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 5;

Fig. 8a is a schematic diagram of eCCE E-PDCCH indices of various UEs in a localized mapping method;

FIG. 8b is a schematic diagram of PUCCH E-PDCCH resources of various UEs in a localized mapping method; FIG.

FIG. 9 is a schematic diagram of eCCE E-PDCCH indices in various display methods; FIG.

10 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 6;

11 a is a schematic diagram of E-PDCCH indices of E-PDCCH mapping of different UEs in a localized mapping method;

11b is a schematic diagram of PUCCH E-PDCCH resources of various UEs in a localized mapping method;

12 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 7;

13 is a flowchart of a method for determining resources of an uplink control channel (PUCCH) in Embodiment 8;

FIG. 14 is a schematic diagram of a structure of a user equipment according to Embodiment 9; FIG.

FIG. 15 is a schematic diagram of an eNB structure according to Embodiment 10; FIG.

FIG. 16 is a schematic diagram of a structure of user equipment according to Embodiment 11; FIG.

17 is a schematic diagram of an eNB structure according to Embodiment 12;

FIG. 18 is a schematic diagram of a structure of a user equipment according to Embodiment 13; FIG.

FIG. 19 is a schematic diagram of a structure of user equipment according to Embodiment 14; FIG.

FIG. 20 is a schematic diagram of an eNB structure according to Embodiment 15; FIG.

21 is a schematic diagram of an eNB structure according to Embodiment 16.

Detailed description

The above and other features of embodiments of the present invention will be explained in the following description with reference to the drawings. These embodiments are illustrative only and are not intended to limit the present invention. In order for the principles and implementation modes of the present invention to be understood by those skilled in the art, the implementation modes of the present invention will be described by the example of an ACK / NACK of PDSCH feedback scheduled by an E-PDCCH. However, it should be understood that the present invention is not limited to the above scenario and is applicable to other scenarios related to the definition of PUCCH resources.

Embodiment 1

An embodiment of the present invention provides a method for determining resources of an uplink control channel (PUCCH). Figure 3 shows a flowchart of a method. In accordance with figure 3, the method comprises:

Step 301: receiving, by a user equipment (UE), a predetermined parameter configured for a method for displaying its enhanced physical downlink control channel (E-PDCCH) via an eNB;

; однако варианты осуществления настоящего изобретения не ограничены этим;moreover, the specified parameter here may be a cell-specific common parameter and may also be a parameter characteristic of the UE, which is semi-statically configured by the upper level; in the following description, this given parameter will be denoted by

; however, embodiments of the present invention are not limited to this;

step 302: determining, by the UE, the resources of its uplink control channel (PUCCH) according to a predetermined parameter corresponding to the display method of its E-PDCCH and the PUCCH calculation formula.

, то есть

ресурсов PUCCH, которым соответствуют E-PDCCH распределенного отображения и локализованного отображения, являются различными. Поэтому, даже хотя индексы ССЕ пространств поиска, занятых различными UE в соответствующих способах отображения E-PDCCH, идентичны, коллизия ресурсов PUCCH не будет возникать, так как используются различные заданные параметры

.In this embodiment, the eNB configures various display methods of the E-PDCCH UEs with various predetermined parameters

, i.e

the PUCCH resources to which the E-PDCCHs of the distributed mapping and the localized mapping correspond are different. Therefore, even though the CCE indices of the search spaces occupied by different UEs in the respective E-PDCCH mapping methods are identical, no PUCCH resource collision will occur, since different preset parameters are used

.

In this embodiment, the PUCCH calculation formula for determining PUCCH resources is not limited. For example, an existing PUCCH calculation formula can be used:

;

;

– начальный индекс ССЕ Е-PDСCH, и

– заданный параметр, сконфигурированный посредством eNB для различных способов отображения E-PDCCH. Предполагая, что заданный параметр, сконфигурированный посредством eNB для E-PDCCH в способе локализованного отображения, есть

, и заданные параметры, сконфигурированные посредством eNB для E-PDCCH в способе распределенного отображения, есть

, ресурсами PUCCH пользователя 1 являются

, и ресурсами PUCCH пользователя 2 являются

, и так как

≠

, то коллизии ресурсов PUCCH можно избежать. Where

- an initial CCE E-PDCCH index, and

- a predetermined parameter configured by the eNB for various E-PDCCH mapping methods. Assuming that the predetermined parameter configured by the eNB for the E-PDCCH in the localized mapping method is

, and the predetermined parameters configured by the eNB for the E-PDCCH in the distributed mapping method is

, PUCCH resources of user 1 are

, and PUCCH resources of user 2 are

, and since

≠

then PUCCH resource collisions can be avoided.

The above formulas are illustrative only, and this embodiment is not limited to this.

In this embodiment, after the eNB configures various E-PDCCH mapping methods of the UE with various predetermined parameters, the eNB may transmit a predetermined parameter corresponding to the E-PDCCH mapping method of the UE to the UE and may also transmit all the specified parameters to which the two methods correspond display, to the UE, so that the UE can determine the corresponding predetermined parameter in accordance with the display method of its E-PDCCH. Therefore, in this embodiment, step 301 may include:

receiving, by the UE, a predetermined parameter corresponding to a method for displaying its E-PDCCH transmitted by the eNB; or

receiving, by the UE, predetermined parameters configured for various E-PDCCH display methods transmitted by the eNB, and determining its predetermined parameter according to the method of displaying its E-PDCCH.

That is, the eNB can transmit all of the various predetermined parameters configured for the various E-PDCCH mapping methods to the UE, and the UE determines the corresponding predetermined parameter in accordance with the mapping method of its E-PDCCH. Or, the eNB can only transmit a predetermined parameter corresponding to the E-PDCCH mapping method of the UE to the UE, therefore, the UE can directly obtain a predetermined parameter corresponding to the mapping method of its E-PDCCH.

In this embodiment, various predetermined parameters are used for various E-PDCCH mapping methods, thereby reducing the problem of PUCCH resource collision of different UEs.

Embodiment 2

An embodiment of the present invention further provides a method for determining resources of an uplink control channel, which is processing on an eNB side that corresponds to a method according to Embodiment 1. FIG. 4 is a flowchart of a method. Referring to FIG. 4, the method includes:

step 401: configuring, by the eNB, various set parameters for various display methods of the E-PDCCH UE; and

step 402: transmitting, by the eNB, various predetermined parameters to the UE, or transmitting a predetermined parameter corresponding to the E-PDCCH mapping method of the UE to the UE, so that the UE determines the resources of its uplink control channel (PUCCH) in accordance with a predetermined parameter corresponding to a method for displaying it with an E-PDCCH, and a PUCCH calculation formula.

In this embodiment, since the E-PDCCH can be displayed in a distributed manner and can also be displayed in a localized way, the eNB in this embodiment configures various specific parameters for E-PDCCHs displayed in a distributed way and E-PDCCHs displayed in a localized way. Therefore, a user of an E-PDCCH displayed in a distributed manner and a user of an E-PDCCH displayed in a localized manner use various predetermined parameters to calculate the resources of their PUCCH.

In this embodiment, since the processing on the UE side has been described in Embodiment 1, it will not be described here further.

In the method of this embodiment, the eNB configures various E-PDCCH mapping methods with various predetermined parameters, thereby preventing a PUCCH resource collision problem of another UE.

Embodiment 3

An embodiment of the present invention further provides a method for determining resources of an uplink control channel. 5 is a flowchart. In accordance with figure 5, the method includes:

step 501: determining, by the UE, the resources of its PUCCH according to a predetermined parameter configured by the eNB and the PUCCH calculation formula corresponding to the display method of its E-PDCCH.

, но используются различные формулы вычисления PUCCH. То есть eNB конфигурирует различные способы отображения E-PDCCH UE с различными формулами вычисления PUCCH, так что коллизия не будет возникать в UE, занимающих различные физические ресурсы E-PDCCH и использующих различные способы отображения E-PDCCH в вычислении ресурсов PUCCH. Разумеется, этот вариант осуществления не ограничен вышеуказанным. Например, способы вариантов осуществления 1 и 2 могут быть объединены, eNB может конфигурировать различные способы отображения E-PDCCH с различными заданными параметрами

в то же самое время, и UE может определять ресурсы своего PUCCH в соответствии с соответствующим заданным параметром

и соответствующей формулой вычисления PUCCH на основе способа отображения его E-PDCCH.In this embodiment, identical predetermined parameters may be used.

but various PUCCH calculation formulas are used. That is, the eNB configures various E-PDCCH mapping methods of the UE with different PUCCH calculation formulas, so that no collision will occur in UEs occupying different E-PDCCH physical resources and using different E-PDCCH mapping methods in calculating the PUCCH resources. Of course, this embodiment is not limited to the above. For example, the methods of embodiments 1 and 2 may be combined, the eNB may configure various methods for displaying the E-PDCCH with various given parameters

at the same time, and the UE may determine the resources of its PUCCH in accordance with the corresponding specified parameter

and the corresponding PUCCH calculation formula based on the display method of its E-PDCCH.

In an embodiment, the eNB configures an E-PDCCH displayed in a localized manner with the following PUCCH calculation formula:

является заданным параметром, полу-статически сконфигурированным верхним уровнем,

является индексом блока физических ресурсов (PRB), занятого посредством E-PDCCH, Z является максимальным числом сегментов информации управления нисходящей линии связи (DCI), переносимых в каждом PRB в распределенном отображении, Y является отношением максимального числа сегментов DCI, переносимых в каждом PRB в распределенном отображении, и максимального числа сегментов DCI, переносимых в каждом PRB в локализованном отображении; причем предпочтительным образом Z равно 8 или 16 и Y=Z/X;

является индексом элемента канала управления (еССЕ) в каждом PRB; причем

= 0, 1,…Х-1, и

может быть низшим индексом еССЕ, соответствующим E-PDCCH, может также быть индексом еССЕ, соответствующим E-PDCCH и ассоциированным с портом опорного символа демодуляции (DM-RS).with the E-PDCCH mapping method of the UE being a localized mapping, the UE may determine the resources of its PUCCH in accordance with the above formula; Where

is a given parameter, semi-statically configured by the upper level,

is the index of the physical resource block (PRB) occupied by the E-PDCCH, Z is the maximum number of segments of downlink control information (DCI) carried in each PRB in a distributed mapping, Y is the ratio of the maximum number of DCI segments carried in each PRB in distributed mapping, and the maximum number of DCI segments carried in each PRB in a localized mapping; moreover, in a preferred manner, Z is 8 or 16 and Y = Z / X;

is the index of the control channel element (ECCE) in each PRB; moreover

= 0, 1, ... X-1, and

may be a lower ECCE index corresponding to an E-PDCCH; may also be an ECCE index corresponding to an E-PDCCH and associated with a demodulation reference symbol (DM-RS) port.

In an embodiment, the eNB configures an E-PDCCH displayed in a distributed manner with the following PUCCH calculation formula:

является заданным параметром, полу-статически сконфигурированным верхним уровнем,

является индексом PRB, занятого посредством E-PDCCH, Z является максимальным числом сегментов DCI, переносимых в каждом PRB, в распределенном отображении, и

является индексом группы элементов ресурсов (еREG) или еССЕ или DCI в каждом PRB; причем

=0, 1,…Z-1, и

может быть низшим индексом еССЕ, соответствующим E-PDCCH, или индексом еССЕ, соответствующим E-PDCCH и ассоциированным с портом DM-RS.with the E-PDCCH mapping method of the UE being a distributed mapping, the UE may determine the resources of its PUCCH in accordance with the above formula; Where

is a given parameter, semi-statically configured by the upper level,

is the index of the PRB occupied by the E-PDCCH, Z is the maximum number of DCI segments carried in each PRB in a distributed display, and

is an index of a group of resource elements (eREG) or ECCE or DCI in each PRB; moreover

= 0, 1, ... Z-1, and

may be a lower ECCE index corresponding to an E-PDCCH, or an ECCE index corresponding to an E-PDCCH and associated with a DM-RS port.

The above PUCCH calculation formulas, respectively configured by an eNB for E-PDCCHs displayed in a localized and distributed manner, are merely illustrative, and embodiments of the present invention are not limited thereto. In a specific implementation, the eNB may also configure various E-PDCCH mapping methods with various different PUCCH calculation formulas, taking into account other conditions only if the PUCCH calculation formulas corresponding to the various E-PDCCH mapping methods are those that are covered by the protection scope of the present invention .

, и для E-PDCCH, отображенного распределенным способом, может быть сконфигурирована формула

, где

- индекс антенного порта (DM-RS), которому соответствует E-PDCCH; например, если E-PDCCH соответствует DM-RS порту 7,

= 0, и если E-PDCCH соответствует DM-RS порту 10,

=3.For example, for an E-PDCCH displayed in a localized manner, the formula can be configured

, and for the E-PDCCH displayed in a distributed manner, the formula can be configured

where

- antenna port index (DM-RS), which corresponds to the E-PDCCH; for example, if the E-PDCCH corresponds to DM-RS port 7,

= 0, and if the E-PDCCH corresponds to DM-RS port 10,

= 3.

, а для E-PDCCH, отображенного распределенным способом, может быть сконфигурирована формула

, где ARI является еще одним параметром, сконфигурированным верхним уровнем.In another example, for the E-PDCCH displayed in a localized manner, the formula can be configured

and, for an E-PDCCH displayed in a distributed manner, the formula can be configured

, where ARI is another parameter configured by the upper layer.

является также опциональным.In the above two examples

is also optional.

In the method according to this embodiment, different PUCCH calculation formulas are used for different E-PDCCH mapping methods, thereby reducing the problem of PUCCH resource collision between different UEs.

Embodiment 4

An embodiment of the present invention further provides a method for determining resources of an uplink control channel, which is the processing on the eNB side to which the method according to embodiment 3 corresponds. FIG. 6 shows a flowchart of a method. Referring to FIG. 6, the method includes:

step 601: configuring, by the eNB, various PUCCH calculation formulas for various E-PDCCH mapping methods of the UE, so that the UE determines its PUCCH resources in accordance with a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to its E-PDCCH mapping method .

Moreover, the type of PUCCH calculation formulas configured by the eNB is not limited in this embodiment only if the PUCCH calculation formulas configured by the eNB for various E-PDCCH display methods are such as are covered by the protection scope of the present invention.

Moreover, examples of PUCCH calculation formulas configured by the eNB for various E-PDCCH mapping methods are described in Embodiment 3, which is included here and does not require further description here.

In the method according to this embodiment, various PUCCH calculation methods are configured by the eNB for various E-PDCCH display methods, so that UEs with different E-PDCCH display methods can calculate the resources of their PUCCH in accordance with different PUCCH calculation formulas, thereby preventing a resource collision problem PUCCH.

Embodiment 5

An embodiment of the present invention further provides a method for determining uplink control channel resources. 7 shows a flowchart. In accordance with Fig.7, the method includes:

step 701: determining, by the UE, the starting point of its PUCCH resources, in accordance with the E-PDCCH payload and its E-PDCCH mapping method; and

step 702: determining, by the UE, the resources of its PUCCH in accordance with the starting point of the resources of its PUCCH and the PUCCH calculation formula.

In this embodiment, in order to differentiate different E-PDCCH mapping methods in order to avoid resource conflicts, the eNB configures various E-PDCCH mapping methods with different E-PDCCH resource starting points, so that the starting point of one of the mapping methods is in the immediate proximity to a possible maximum PUCCH resource index in another display method. Therefore, when calculating the PUCCH resources by the UE, the UE can determine the starting point of the resources of its PUCCH in accordance with the payload (i.e., the total overhead) of the E-PDCCH and the display method of its E-PDCCH. Since, according to various E-PDCCH mapping methods, PUCCH resources are calculated based on different starting points of PUCCH resources, collision of PUCCH resources of different UEs is prevented.

In an embodiment, the eNB indicates the total overhead of the E-PDCCH mapped in a distributed manner through the physical channel of the control format indicator (EPCFICH), for example, indicating an eCCE number or a PRB number in each transmission time interval (TTI). At the same time, after the eNB configures the PUCCH resources corresponding to the E-PDCCH mapped in a localized manner, very close to the maximum index of PUCCH resources to which the E-PDCCH is mapped in a distributed manner, the UE can determine the starting point of its PUCCH resources, respectively. For example, if the E-PDCCHs of a UE are mapped in a distributed manner, the UE may determine that its PUCCH's resource starting point is 0; and if the E-PDCCHs of the UE are displayed in a localized manner, the UE may determine that the starting point of its PUCCH resources is the maximum PUCCH resource index to which the E-PDCCHs mapped in a distributed manner correspond.

, или число PRB, указанных посредством EPCFICH, равно

, и число еССЕ

=Х

, где Х – число еССЕ, переносимых в каждом PRB, для UE, у которого способ отображения E-PDCCH является распределенным способом, ресурсы его PUCCH могут быть определены посредством вычисления с использованием формулы:

, а для UE, у которого способ отображения E-PDCCH является локализованным способом, ресурсы его PUCCH могут быть определены посредством вычисления с использованием формулы:

или

+

.For example, suppose that the number of ECCE indicated by EPCFICH is

, or the number of PRBs indicated by EPCFICH is

, and the number of ECCE

= X

where X is the number of ECCEs carried in each PRB for a UE whose E-PDCCH mapping method is a distributed method, its PUCCH resources can be determined by calculation using the formula:

and for a UE in which the E-PDCCH mapping method is a localized method, its PUCCH resources can be determined by calculation using the formula:

or

+

.

In this embodiment, like embodiments 1 and 3, the PUCCH calculation formulas are only illustrative, this embodiment is not limited to this, and any calculation formulas for calculating PUCCH resources are all covered by the protection scope of the present invention.

In the method according to the present embodiment, the various starting points of the PUCCH resources are used according to the various E-PDCCH mapping methods, thereby reducing the problem of collision of PUCCH resources of different UEs.

In order that the methods of embodiments 1, 3 and 5 can be more clearly and simply understood, they will be described below with reference to figa, 8b and 9.

, идентичны, приводя в результате к коллизии ресурсов. Чтобы решить такую проблему, может быть введен индекс PRB. Например, приведенная выше формула может быть модифицирована следующим образом:FIGS. 8a and 8b are schematic diagrams of eCCE indices and corresponding PUCCH E-PDCCH resources of different UEs in a localized mapping method. As shown in FIGS. 8a and 8b, although UE1 and UE2 occupy different physical resources, since the positions of the CCE indices in their respective search spaces are identical, the PUCCH resources obtained by calculation using the formula

are identical, resulting in a collision of resources. To solve such a problem, a PRB index may be entered. For example, the above formula can be modified as follows:

является индексом PRB, занятого E-PDCCH, n_CCE – индекс ССЕ в каждом PRB, и Х – число еССЕ, переносимых в каждом PRB, предпочтительно Х=2 или 3 или 4; принимая Х=4 в качестве примера, ресурсами PUCCH UE1 соответственно его E-PDCCH является

, и ресурсами PUCCH UE2 соответственно его E-PDCCH является

, причем n_CEE=0,1,..Х-1, и n_CEE может быть низшим индексом еСЕЕ, соответствующим E-PDCCH, или индексом еССЕ, соответствующим E-PDCCH и ассоциированным с портом DM-RS.Where

is the index of the PRB occupied by the E-PDCCH, n _CCE is the _CCE index in each PRB, and X is the number of ECCE carried in each PRB, preferably X = 2 or 3 or 4; taking X = 4 as an example, the PUCCH resources of UE1, respectively, its E-PDCCH is

, and the PUCCH resources of UE2, respectively, of its E-PDCCH is

wherein n _CEE = 0.1, .. X-1, and n _CEE may be the lowest ECE index corresponding to the E-PDCCH, or the ECCE index corresponding to the E-PDCCH and associated with the DM-RS port.

However, although the problem of PUCCH resource collisions between UEs in which the E-PDCCH mapping method is a localized method can be solved by introducing a PRB index when n _CCE indices are independent for different E-PDCCH mapping methods, the problem of PUCCH resource collisions between UEs in which E-PDCCH display methods are different, can not be resolved.

, идентичны, приводя в результате к коллизии ресурсов.FIG. 9 is a schematic diagram of eCCE E-PDCCH indices in various display methods. As shown in FIG. 9, UE1 and UE2 use different mapping methods, UE1 uses distributed mapping, and UE2 uses localized distribution. Although UE1 and UE2 occupy different physical resources, since the positions of the CCE indices in their respective search spaces are identical, the PUCCH resources obtained by calculation using the formula

are identical, resulting in a collision of resources.

Due to the problem of PUCCH resource conflicts in the scenarios shown in FIGS. 8a, 8b and 9, a method according to this embodiment of the invention is proposed.

, то проблема коллизии ресурсов PUCCH в вышеописанных двух сценариях может быть предотвращена.In the method according to embodiment 1, if different E-PDCCH mapping methods use different

, then the PUCCH resource collision problem in the above two scenarios can be prevented.

, но используют различные формулы вычисления PUCCH, можно также сделать так, что коллизия не возникнет в UE, занимающих разные физические ресурсы E-PDCCH и использующих разные способы отображения/передачи E-PDCCH в вычислении ресурсов PUCCH.In the method of embodiment 3, if different E-PDCCH mapping methods use identical

but using different PUCCH calculation formulas, it can also be done so that no collision occurs in UEs occupying different E-PDCCH physical resources and using different E-PDCCH display / transmission methods in calculating PUCCH resources.

, и для UE в способе локализованного отображения ресурсы его PUCCH могут быть вычислены как

или

, тем самым избегая коллизии ресурсов в сценариях, показанных на фиг.8 и 9.In the method according to embodiment 5, if the full overhead of the E-PDCCH displayed in a distributed manner can be obtained in real time, such as an indication by EPCFICH in each TTI, then the PUCCH resources to which the E-PDCCH corresponds, displayed in a localized manner, can be placed in the immediate vicinity after the maximum PUCCH resource index to which the E-PDCCHs mapped in a distributed manner correspond. Since the starting points of PUCCH resources in different E-PDCCH mapping methods are different, for a UE in the distributed mapping method, its PUCCH resources can be calculated as

, and for the UE in the localized mapping method, its PUCCH resources can be calculated as

or

thereby avoiding resource collisions in the scenarios shown in FIGS. 8 and 9.

Embodiment 6

An embodiment of the present invention further provides a method for determining resources of an uplink control channel. 10 is a flowchart of a method. With reference to FIG. 10, the method includes:

step 1001: determining the maximum PUCCH resource index, by the UE, dynamically in accordance with the E-PDCCH payload or dynamically in accordance with the maximum value pre-configured by the upper layer; and

step 1002: determining, by the UE, the resources of its PUCCH in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

In this embodiment, the eNB pre-sets the maximum resource index, and if the UE determines the resources of its PUCCH (i.e., the PUCCH resources required by the ACK / NACK PDSCH feedback scheduled by the E-PDCCH), the resource index of its PUCCH is made no larger than the preset maximum resource index, thereby preventing the problem of collision of resources.

Moreover, the maximum resource index can be determined in accordance with the E-PDCCH payload and can also be dynamically determined in accordance with the maximum value pre-configured by the upper level, and this embodiment is not limited to this. The maximum resource value pre-configured by the upper layer also takes into account the E-PDCCH payload.

еССЕ, которым соответствуют E-PDCCH всех UE в способе распределенного отображения, и параметр L может быть сконфигурирован верхним уровнем, и принимать

, чтобы обозначать число еССЕ E-PDCCH всех UE. Следовательно, UE может совместно получить полезную нагрузку E-PDCCH в соответствии с EPCFICH и сигнализацией верхнего уровня, тем самым определяя максимальный индекс ресурса PUCCH.Moreover, in the method for dynamically determining the maximum resource index according to the E-PDCCH payload, the E-PDCCH payload can be obtained directly or indirectly in accordance with the EPCFICH and can also be jointly obtained in accordance with the EPCFICH and the upper level signaling. For example, an EPCFICH may indicate the number of ECCEs that correspond to the E-PDCCHs of all UEs, that is, including the total number of ECCEs displayed in a distributed manner and in a localized manner. Therefore, the UE can directly or indirectly obtain the E-PDCCH payload in accordance with the EPCFICH and further determine the maximum PUCCH resource index, respectively. As another example, EPCFICH can only specify a number

ECCEs to which the E-PDCCHs of all UEs correspond in the distributed mapping method, and the parameter L may be configured by the upper layer and receive

to denote the ECC number of the E-PDCCH of all UEs. Therefore, the UE can jointly receive the E-PDCCH payload in accordance with the EPCFICH and the upper layer signaling, thereby determining the maximum PUCCH resource index.

может быть сконфигурировано верхним уровнем, и добавляется бит, или существующий бит мультиплексируется в DCI E-PDCCH, чтобы динамически указывать, какое

используется. Следовательно, UE может определить полезную нагрузку E-PDCCH в соответствии с сигнализацией верхнего уровня и динамической индикацией, тем самым определяя максимальный индекс ресурса PUCCH соответственно.Moreover, in the method for dynamically determining the maximum resource index, in accordance with the maximum value pre-configured by the upper level, if the eNB does not transmit the EPCFICH to the UE, that is, the EPCFICH does not exist, then the set

can be configured by the upper layer and a bit is added, or the existing bit is multiplexed in the DCI E-PDCCH to dynamically indicate which

is used. Therefore, the UE can determine the payload of the E-PDCCH in accordance with the upper layer signaling and dynamic indication, thereby determining the maximum PUCCH resource index, respectively.

In the implementation mode of step 1002, the UE can determine its PUCCH resources by performing a modulo operation on the maximum PUCCH resource index using a value obtained by calculating in accordance with the PUCCH calculation formula.

In another implementation mode of step 1002, other elements may be added so as to reduce the possibility of collisions introduced by the modulo operation (remainder finding operation).

In order for the method according to this embodiment to be clearer and easier to understand, it will be described later with reference to FIG. 11.

,

и

. Предполагая, что максимально 6 CS и 3 ОСС могут поддерживаться в каждом PRB, то есть PRB может переносить 18 различных

, для простоты предположим, что

=18, PRB, которым соответствуют PUCCH трех UE, являются, соответственно, вторым PRB, третьим PRB и четвертым PRB. Однако три PRB могут в действительности вмещать максимально 54 UE, а в этом варианте осуществления имеется только три UE, которые все же занимают 3 PRB, что приводит в результате к очень низкому спектральному использованию PUCCH.As shown in FIG. 11, an eNB plans only three UEs, that is, transmits E-PDCCHs planning to transmit PDSCHs to three UEs. If the E-PDCCHs of three UEs are transmitted in PRBs spaced relatively far apart, as shown in FIG. 11, they are transmitted in a first PRB, a fifth PRB, and a ninth PRB, respectively, then the PUCCH resources to which the three UEs correspond are:

,

and

. Assuming a maximum of 6 CS and 3 OSSs can be supported in each PRB, that is, the PRB can carry 18 different

, for simplicity, assume that

= 18, the PRBs to which the PUCCHs of the three UEs correspond are, respectively, the second PRB, the third PRB, and the fourth PRB. However, the three PRBs can actually accommodate a maximum of 54 UEs, and in this embodiment there are only three UEs that still occupy 3 PRBs, resulting in very low spectral utilization of the PUCCH.

In order to effectively increase efficiency, the PUCCH resource index may be limited so as not to exceed a pre-set maximum resource index using the method according to this embodiment. The maximum resource index may be dynamically determined in accordance with the E-PDCCH payload or dynamically determined in accordance with the maximum value configured by the upper layer.

Moreover, in the method for dynamically determining the maximum load index in accordance with the E-PDCCH payload, the E-PDCCH payload can be obtained directly or indirectly in accordance with the EPCFICH and can also be obtained jointly in accordance with the EPCFICH and the upper level signaling. Moreover, in the method for dynamically determining the maximum resource index, in accordance with the maximum value pre-configured by the upper level, the maximum resource index can be obtained through the upper level signaling and dynamic indication information.

-1, ресурсы PUCCH могут быть определены в способе операции определения остатка, при этом ограничивая индекс ресурсов PUCCH так, чтобы не превышать предварительно установленный максимальный индекс ресурса, то есть:For example, assuming that the maximum resource index is

-1, PUCCH resources can be determined in the method of the remainder determination operation, while limiting the PUCCH resource index so as not to exceed a predetermined maximum resource index, i.e.:

=20, ресурсы трех UE являются соответственно:Assuming that

= 20, the resources of the three UEs are respectively:

и

and

Therefore, the PUCCHs of the three UEs are mapped to different OSS or CS resources in the same PRB, thereby improving the spectral efficiency of the PUCCHs.

, то есть:In another embodiment, other elements may be added so as to reduce the possibility of collisions introduced by the remainder finding operation. For example, rounding down is added.

, i.e:

, такую как

, может также использовать формулы и методы, приведенные в вариантах осуществления 1, 3 и 5, такие как

для распределенного отображения и

для локализованного отображения, и может также использовать любую другую формулу, такую как

, где

является индексом антенного порта (DM-RS), которому соответствует E-PDCCH, или

; где ARI – параметр, сконфигурированный посредством верхнего уровня. Следовательно, предпочтительным способом может быть:Moreover, the function in [] can use a formula identical to that in the prior art in calculating

such as

may also use the formulas and methods given in embodiments 1, 3, and 5, such as

for distributed display and

for localized mapping, and can also use any other formula, such as

where

is the antenna port index (DM-RS) to which the E-PDCCH corresponds, or

; where ARI is a parameter configured by the upper level. Therefore, a preferred method may be:

(but)

or

(b)

(b)

равно 1, 19 и 21, соответственно, и соответствующими DMRS-портами являются порт 7, порт 9 и порт 7, соответственно, тогда в соответствии с формулой (b), предполагая, что

= 5,

=20,

трех UE соответственно равны:Assuming three UEs,

equals 1, 19 and 21, respectively, and the corresponding DMRS ports are port 7, port 9 and port 7, respectively, then in accordance with formula (b), assuming that

= 5,

= 20,

three UEs are respectively equal:

Therefore, all the PUCCHs of the three UEs are mapped to different OSS or CS resources in the same PRB, thereby improving the spectral efficiency of the PUCCH.

в соответствии только с первым элементом, т.е.

, то

- все равны 6, и возникает коллизия ресурсов PUCCH для UE. Если добавляется округление в меньшую сторону для

, то значения второго элемента являются различными, тем самым позволяя UE избегать коллизии. И если UE2 и UE3 вычисляют все в соответствии с формулой (а), то есть выражения в скобках первого элемента и второго элемента являются полностью идентичными, тогда

- все равны 7, и возникает коллизия в ресурсах PUCCH UE. Если выражения в скобках второго элемента и первого элемента в формуле (b) различны, то коллизия ресурсов PUCCH между UE предотвращается.If UE1 and UE3 compute

according to only the first element, i.e.

then

- all are 6, and a PUCCH resource collision occurs for the UE. If rounding down is added for

, then the values of the second element are different, thereby allowing the UE to avoid collision. And if UE2 and UE3 calculate everything in accordance with formula (a), that is, the expressions in brackets of the first element and the second element are completely identical, then

- all equal to 7, and a collision occurs in the resources of the PUCCH UE. If the expressions in parentheses of the second element and the first element in formula (b) are different, then a PUCCH resource collision between the UEs is prevented.

In this embodiment, the PUCCH calculation formula and the corresponding method for calculating PUCCH resources are not limited. For example, they can be implemented using the methods in Embodiment 1, Embodiment 3, or Embodiment 5 of the present invention only if the calculated resource index for the PUCCH resources does not exceed the predefined maximum PUCCH resource index, which are all included in the protection scope of the present invention.

In the method according to the present embodiment, the maximum PUCCH resource index can be pre-set so that the calculated resource index for PUCCH resources does not exceed a preset value, thereby improving the spectral efficiency of the PUCCH. If PUCCH resources are calculated using the methods in Embodiment 1, Embodiment 3, or Embodiment 5, then resource collisions between different UEs can be prevented at the same time.

Embodiment 7

An embodiment of the present invention further provides a method for determining uplink channel resources, which is processing on an eNB side to which an implementation mode of Embodiment 6 corresponds. FIG. 12 shows a flowchart of a method. With reference to FIG. 12, the method includes:

step 1201: configuring payload times by the eNB; and

step 1202: transmitting the payload times via the eNB to the UE, so that the UE determines the payload of its E-PDCCH in accordance with the payload times and the E-PDCCH payload in the distributed mapping indicated by the received EPCFICH, determines the maximum resource index of its PUCCH in accordance with the E-PDCCH payload, and determines the resources of its PUCCH in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

This embodiment corresponds to the implementation mode in Embodiment 6, jointly receiving the E-PDCCH payload in accordance with the EPCFICH and the upper layer signaling.

еССЕ, которым соответствуют все E-PDCCH UE, отображенные распределенным способом, то eNB может предварительно конфигурировать время полезных нагрузок L и передавать время полезных нагрузок к UE посредством сигнализации верхнего уровня, UE может определять полезную нагрузку

E-PDCCH в соответствии с временем полезных нагрузок L и

, полученными из EPCFICH, чтобы обозначать число еССЕ E-PDCCH всех UE. Таким путем UE может определять полезную нагрузку E-PDCCH, определять максимальный индекс ресурса PUCCH соответственно и определять ресурсы своего PUCCH в соответствии с формулой вычисления PUCCH, тем самым улучшая спектральную эффективность PUCCH.In this embodiment, if the E-PDCCH indicates only a number

ECCs to which all E-PDCCH UEs mapped in a distributed manner correspond, then the eNB can pre-configure the payload time L and transmit the payload time to the UE by means of upper layer signaling, the UE can determine the payload

E-PDCCH according to payload times L and

derived from EPCFICH to denote the ECC number of E-PDCCHs of all UEs. In this way, the UE can determine the payload of the E-PDCCH, determine the maximum PUCCH resource index, respectively, and determine the resources of its PUCCH in accordance with the PUCCH calculation formula, thereby improving the spectral efficiency of the PUCCH.

In this embodiment, processing is described on the UE side in this implementation mode, the contents of which are included here, which will not be further described here.

Option exercise 8

An embodiment of the present invention further provides a method for determining resources of an uplink channel, which is processing on an eNB side, which corresponds to another implementation mode of Embodiment 6. FIG. 13 is a flowchart of a method. With reference to FIG. 13, the method includes:

step 1301: configuring a plurality of payloads of the E-PDCCH by the eNB; and

transmitting the plurality of E-PDCCH payloads and payload indication information via the eNB to the UE, so that the UE determines its E-PDCCH payload according to the payload indication information, determines the maximum resource index of its PUCCH in accordance with the E-PDCCH payload, and determines the resources of its PUCCH in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

через сигнализацию верхнего уровня, и используемое

динамически указывается UE путем добавления бита или мультиплексирования существующего бита к DCI E-PDCCH, передаваемого к UE. Поэтому UE может определять полезную нагрузку E-PDCCH, определять максимальный ресурс индекса PUCCH соответственно и определять ресурсы своего PUCCH в соответствии с формулой вычисления PUCCH, тем самым улучшая спектральную эффективность PUCCH.In this embodiment, if an EPCFICH does not exist, the eNB may configure multiple E-PDCCH payloads.

via top level alarm, and used

The UE is dynamically indicated by adding a bit or multiplexing an existing bit to the DCI of the E-PDCCH transmitted to the UE. Therefore, the UE can determine the payload of the E-PDCCH, determine the maximum resource of the PUCCH index, respectively, and determine the resources of its PUCCH in accordance with the PUCCH calculation formula, thereby improving the spectral efficiency of the PUCCH.

In this embodiment, processing on the UE side in this implementation mode has been described, the contents of which are included here, which will not be further described here.

An embodiment of the present invention further provides a UE as described in Embodiment 9 below. Since the principle of the UE for solving problems is similar to that in the method according to embodiment 1, the implementation of the method in embodiment 1 relates to the implementation of the UE, and the repeating parts will not be further described here.

Embodiment 9

An embodiment of the present invention further provides a user equipment (UE). On Fig shows a block diagram of the structure of the UE. With reference to FIG. 14, the UE includes:

a receiving unit 141 configured to receive a predetermined parameter configured for a method for displaying an extended physical downlink control channel (E-PDCCH) of a UE by an eNB; and

a determination module 142 configured to determine the resources of the uplink control channel (PUCCH) of the UE according to a predetermined parameter corresponding to the E-PDCCH of the UE and the PUCCH calculation formula.

At the same time, the receiving module 141 is configured to: take a predetermined parameter corresponding to the display method of its E-PDCCH transmitted by the eNB, or receive predetermined parameters configured for various E-PDCCH display methods transmitted by the eNB, and determine its predetermined parameter in accordance with with a way to display your E-PDCCH.

In the UE according to this embodiment, the eNB configures various E-PDCCH mapping methods with various predetermined parameters, and the PUCCH resources obtained by computing by the UE in various E-PDCCH mapping methods in accordance with the various predetermined parameters are different, thereby preventing PUCCH resource collision issue.

An embodiment of the present invention further provides an eNB, as described in Embodiment 10 below. Since the eNB principle for solving problems is similar to that of the method in embodiment 2, the implementation of the method in embodiment 2 should be referenced to implement the eNB, and the repeating parts will not be further described.

Embodiment 10

An embodiment of the present invention further provides an eNB. On Fig shows a block diagram of the structure of the eNB. With reference to FIG. 15, an eNB includes:

a configuration module 151 configured to configure various predetermined parameters for various display methods of the E-PDCCH UE; and

a transmission module 152 configured to transmit various predetermined parameters to the UE or transmit a predetermined parameter corresponding to the E-PDCCH of the UE to the UE, so that the UE determines the resources of its uplink control channel (PUCCH) in accordance with a predetermined parameter corresponding to the method display your E-PDCCH, and PUCCH calculation formula.

In the eNB corresponding to this embodiment, the various E-PDCCH mapping methods are configured with different predetermined parameters, and the PUCCH resources obtained by computing by the UE in the various E-PDCCH mapping methods in accordance with the various predetermined parameters are different, thereby preventing a problem PUCCH resource collisions.

An embodiment of the present invention further provides a UE, as described in Embodiment 11 below. Since the principle of the UE for solving problems is similar to that in the method in embodiment 3, the implementation of the method in embodiment 3 should be referred to for the implementation of the UE, and the repeating parts will not be further described.

Embodiment 11

An embodiment of the present invention further provides a user equipment (UE). On Fig shows a block diagram of the structure of the UE. With reference to FIG. 16, the UE includes:

a determination module 161 configured to determine the PUCCH resources of the UE according to a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to the E-PDCCH UE mapping method.

In an embodiment, when the E-PDCCH UE mapping method is a localized mapping, the determination unit 161 determines the PUCCH resources of the UE in accordance with the following formula configured by the eNB for the UE:

является заданным параметром, полу-статически сконфигурированным верхним уровнем,

является индексом блока физических ресурсов (PRB), занятого посредством E-PDCCH, Z является максимальным числом сегментов информации управления нисходящей линии связи (DCI), переносимых в каждом PRB в распределенном отображении, Y является отношением максимального числа сегментов DCI, переносимых в каждом PRB в распределенном отображении, и максимального числа сегментов DCI, переносимых в каждом PRB в локализованном отображении; и

является индексом элемента канала управления (еССЕ) в каждом PRB.Where

is a given parameter, semi-statically configured by the upper level,

is the index of the physical resource block (PRB) occupied by the E-PDCCH, Z is the maximum number of segments of downlink control information (DCI) carried in each PRB in a distributed mapping, Y is the ratio of the maximum number of DCI segments carried in each PRB in distributed mapping, and the maximum number of DCI segments carried in each PRB in a localized mapping; and

is the index of the control channel element (ECCE) in each PRB.

=0, 1,…Х-1, и

является низшим индексом еССЕ, соответствующим E-PDCCH, или индексом еССЕ, соответствующим E-PDCCH и ассоциированным с портом опорного символа демодуляции (DM-RS).Moreover

= 0, 1, ... X-1, and

is the lowest ECCE corresponding to the E-PDCCH, or the ECCE corresponding to the E-PDCCH and associated with the demodulation reference symbol port (DM-RS).

In another embodiment, when the E-PDCCH UE mapping method is a distributed mapping, the determination unit 161 determines the PUCCH resources of the UE in accordance with the following formula configured by the eNB for the UE:

является заданным параметром, полу-статически сконфигурированным верхним уровнем,

является индексом PRB, занятого посредством E-PDCCH, Z является максимальным числом сегментов DCI, переносимых в каждом PRB в распределенном отображении, и

является индексом группы элементов ресурсов (еREG) или еССЕ или DCI в каждом PRB.Where

is a given parameter, semi-statically configured by the upper level,

is the index of the PRB occupied by the E-PDCCH, Z is the maximum number of DCI segments carried in each PRB in a distributed display, and

is the resource element group index (eREG) or the ECCE or DCI in each PRB.

=0, 1,…Z-1, и

является низшим индексом еССЕ, соответствующим E-PDCCH, или индексом еССЕ, соответствующим E-PDCCH и ассоциированным с портом DM-RS.Moreover

= 0, 1, ... Z-1, and

is the lowest ECCE corresponding to the E-PDCCH, or the ECCE corresponding to the E-PDCCH and associated with the DM-RS port.

In the UE corresponding to this embodiment, the eNB configures various E-PDCCH mapping methods with different PUCCH calculation formulas, and the PUCCH resources obtained by computing by the UE in various E-PDCCH mapping methods in accordance with the different PUCCH calculation formulas are different, thereby preventing a PUCCH resource collision problem.

An embodiment of the present invention further provides an eNB, as described in Embodiment 12 below. Since the eNB principle for solving problems is similar to that of the method in embodiment 4, the implementation of the method in embodiment 4 should be referenced to implement the eNB, and the repeating parts will not be further described.

Embodiment 12

An embodiment of the present invention further provides an eNB. 17 is a block diagram of an eNB structure. With reference to FIG. 17, an eNB includes:

a configuration module 171 configured to configure various PUCCH calculation formulas for various E-PDCCH mapping methods of the UE, so that the UE determines its PUCCH resources in accordance with a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to its E-PDCCH mapping method.

In the eNB corresponding to this embodiment, the various E-PDCCH mapping methods are configured with different PUCCH calculation formulas, and the PUCCH resources obtained by calculation by the UE in the various E-PDCCH mapping methods in accordance with the different PUCCH calculation formulas are different, thereby preventing the problem of PUCCH resource conflicts.

An embodiment of the present invention further provides a UE, as described in Embodiment 13 below. Since the principle of the UE for solving problems is similar to that in the method in embodiment 5, the implementation of the method in embodiment 5 should be referred to for the implementation of the UE, and the repeating parts will not be further described.

Embodiment 13

An embodiment of the present invention further provides a user equipment (UE). On Fig shows a block diagram of the structure of the UE. With reference to FIG. 18, the UE includes:

a first determination module 181 configured to determine a starting point of PUCCH resources of the UE in accordance with the E-PDCCH payload and the E-PDCCH UE mapping method; and

a second determination module 182, configured to determine the PUCCH resources of the UE in accordance with the starting point of the PUCCH resources of the UE and the PUCCH calculation formula.

In this case, the payload of the E-PDCCH is determined through the number of ECCE or the number of PRBs indicated by the physical channel of the control format indicator (EPCFICH).

In this case, the starting point of the PUCCH in the E-PDCCH mapping method is in close proximity to the possible maximum PUCCH resource index in another E-PDCCH mapping method.

In the UE according to this embodiment, the eNB configures various E-PDCCH mapping methods with different starting points of PUCCH resources, and the PUCCH resources obtained by computing by the UE in various E-PDCCH mapping methods in accordance with different starting points of PUCCH resources thereby preventing the problem of PUCCH resource collisions.

An embodiment of the present invention further provides a UE, as described in Embodiment 14 below. Since the principle of the UE for solving problems is similar to that in the method in embodiment 6, the implementation of the method in embodiment 6 should be referred to for the implementation of the UE, and the repeating parts will not be further described.

Embodiment 14

An embodiment of the present invention further provides a user equipment (UE). On Fig shows a block diagram of the structure of the UE. With reference to FIG. 19, the UE includes:

a first determining module 191, configured to determine the maximum PUCCH resource index dynamically in accordance with the E-PDCCH payload or dynamically in accordance with the maximum value pre-configured by the upper level; and

a second determination module 192 configured to determine PUCCH resources in accordance with the PUCCH calculation formula and the maximum PUCCH resource index.

In this case, when determining the maximum PUCCH resource index dynamically in accordance with the E-PDCCH payload, the first determination module 191 receives directly or indirectly the E-PDCCH payload through the EPCFICH or receives through the calculation of the E-PDCCH payload through the EPCFICH and the upper level signaling and then determines the maximum PUCCH resource index according to the E-PDCCH payload.

Moreover, when determining the maximum PUCCH resource index dynamically in accordance with the maximum value pre-configured by the upper level, the first determination module 191 first receives a plurality of E-PDCCH payloads pre-configured by the eNB and transmitted by the eNB, determines the payload of its E-PDCCH in according to the payload indication information transmitted by the eNB, and then determines the maximum PUCCH resource index in accordance with the E-PDCCH payload.

In this case, the second determination module 192 determines the PUCCH resources of the UE by performing a modulo operation on the maximum PUCCH resource index using the value obtained through calculation in accordance with the PUCCH calculation formula.

With the UE corresponding to this embodiment, the eNB pre-sets the maximum PUCCH resource index, and then the UE calculates the PUCCH resources using the PUCCH calculation formulas, the spectral efficiency of the PUCCH is improved by limiting the resource index for the calculated resource to be within the preset maximum PUCCH resource index . And collision of PUCCH resources is prevented in calculating PUCCH resources by using the methods of Embodiment 9, Embodiment 11 and Embodiment 13.

An embodiment of the present invention further provides an eNB as described in Embodiment 15 below. Since the eNB principle for solving problems is similar to that in the method in embodiment 7, the implementation of the method in embodiment 7 should be referred to for the implementation of the eNB, and the repeating parts will not be further described.

Embodiment 15

An embodiment of the present invention further provides an eNB. On Fig shows a block diagram of the structure of the eNB. With reference to FIG. 20, an eNB includes:

a configuration module 2001 configured to configure payload times; and

a transmission module 2002, configured to transmit the payload times to the UE, so that the UE determines the payload of its E-PDCCH in accordance with the payload times and the E-PDCCH payload in the distributed mapping indicated by the received EPCFICH determines the maximum resource index of its PUCCH in according to the payload of the E-PDCCH and determines the resources of its PUCCH in accordance with the formula for calculating the PUCCH and the maximum resource index of its PUCCH.

By configuring the corresponding parameters via the eNB corresponding to this embodiment, the UE can determine the payload of the E-PDCCH and determine the resources of its PUCCH accordingly, thereby preventing the problem of collision of PUCCH resources.

An embodiment of the present invention further provides an eNB, as described in embodiment 16 below. Since the eNB principle for solving problems is similar to that of the method in embodiment 8, the implementation of the method in embodiment 8 should be referenced to implement the eNB, and the repeating parts will not be further described.

Option exercise 16

An embodiment of the present invention further provides an eNB. On Fig shows a block diagram of the structure of the eNB. With reference to FIG. 21, an eNB includes:

a configuration module 2101 configured to configure a plurality of E-PDCCH payloads; and

a transmission module 2102 configured to transmit a plurality of E-PDCCH payloads and payload indication information to the UE, so that the UE determines its E-PDCCH payload in accordance with the payload indication information, determines the maximum resource index of its PUCCH in accordance with the payload E-PDCCH and determines the resources of its PUCCH in accordance with the formula for calculating PUCCH and the maximum resource index PUCCH.

By configuring the corresponding parameters via the eNB according to this embodiment, the UE can determine the payload of the E-PDCCH and determine the resources of its PUCCH, respectively, thereby improving the spectral efficiency of the PUCCH resources.

An embodiment of the present invention further provides a computer-readable program, wherein when the program is executed in user equipment, the program instructs the computer to perform a method for determining resources of an uplink control channel, as described in embodiment 1, in embodiment 3, in embodiment 5 or in embodiment 6, in user equipment.

An embodiment of the present invention further provides a storage medium in which a computer-readable program is stored, the computer-readable program instructing the computer to perform a method for determining the resources of the uplink control channel, as described in embodiment 1, in embodiment 3, in embodiment 5 or in embodiment 6, in user equipment.

An embodiment of the present invention further provides a computer-readable program, wherein when the program is executed in the eNB, the program instructs the computer to execute a method for determining the resources of the uplink control channel, as described in embodiment 2, in embodiment 4, in embodiment 7, or embodiment 8, in an eNB.

An embodiment of the present invention further provides a storage medium in which a computer-readable program is stored, the computer-readable program instructing the computer to perform a method for determining resources of an uplink control channel, as described in embodiment 2, in embodiment 4, in embodiment 7 or in embodiment 8, in an eNB.

The above devices and methods according to the present invention can be implemented by hardware or by hardware in combination with software. The present invention relates to a computer-readable program such that when the program is executed by a logical device, the logical device is able to implement the device or components, as described above, or perform methods or steps, as described above. The present invention also relates to a storage medium for storing the above program, such as a hard disk, floppy disk, CD, DVD and flash memory, etc.

The present invention has been described above with reference to specific embodiments. However, it will be understood by those skilled in the art that the description is merely illustrative and not intended to limit the scope of protection of the present invention. Various variations and modifications may be made by those skilled in the art in accordance with the spirit and principle of the present invention, and such variations and modifications are included in the scope of the present invention.

Claims (35)

1. A method for determining resources of an uplink control channel, comprising: receiving, by a user equipment (UE), a predetermined parameter configured for a method for displaying its extended physical downlink control channel (E-PDCCH) via an eNB; and determining, by the UE, the resources of its uplink control channel (PUCCH) according to said predetermined parameter corresponding to the display method of its E-PDCCH and the PUCCH calculation formula, moreover, the display method consists of a localized display and a distributed display, and wherein said predetermined parameter for an E-PDCCH in a localized mapping method and said predetermined parameter for an E-PDCCH in a distributed display method are different. 2. User equipment (UE) comprising: a receiving module configured to receive a predetermined parameter configured for a method for displaying an extended physical downlink control channel (E-PDCCH) of a UE by an eNB; and a determining module configured to determine the resources of the uplink control channel (PUCCH) according to said predetermined parameter corresponding to the E-PDCCH mapping method of the UE and the PUCCH calculation formula, moreover, the display method consists of a localized display and a distributed display, and wherein said predetermined parameter for an E-PDCCH in a localized mapping method and said predetermined parameter for an E-PDCCH in a distributed display method are different. 3. The UE according to claim 2, in which the receiving module is configured to: receive a predetermined parameter corresponding to the display method of its E-PDCCH transmitted by the eNB, or receive the set parameters configured for various E-PDCCH display methods transmitted by the eNB, and determine its set parameter in accordance with the display method of its E-PDCCH. 4. eNB containing: a configuration module configured to configure various predetermined parameters for various display methods of the E-PDCCH UE; and a transmission module configured to transmit various predetermined parameters to the UE or transmit a predetermined parameter corresponding to the E-PDCCH mapping method of the UE to the UE, so that the UE determines the resources of its uplink control channel (PUCCH) in accordance with said predetermined parameter corresponding to the method displaying it with an E-PDCCH, and a PUCCH calculation formula, moreover, the display method consists of a localized display and a distributed display, and wherein said predetermined parameter for an E-PDCCH in a localized mapping method and said predetermined parameter for an E-PDCCH in a distributed display method are different. 5. User equipment (UE), comprising: a determination module configured to determine PUCCH resources of the UE according to a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to the E-PDCCH of the UE, wherein the mapping method consists of localized mapping and distributed mapping, and wherein said PUCCH calculation formula for E-PDCCH in the localized mapping method and said PUCCH calculation formula for E-PDCCH in the distributed mapping method are different. 6. The UE according to claim 5, wherein when the E-PDCCH UE mapping method is a localized mapping, the determination module determines the PUCCH resources of the UE in accordance with the following formula configured by the eNB for the UE:

, Where

is a given parameter, semi-statically configured by the upper level,

is the index of the physical resource block (PRB) occupied by the E-PDCCH, Z is the maximum number of segments of downlink control information (DCI) carried in each PRB in a distributed mapping, Y is the ratio of the maximum number of DCI segments carried in each PRB in distributed mapping, and the maximum number of DCI segments carried in each PRB in a localized mapping; and

is the index of the control channel element (ECCE) in each PRB. 7. The UE according to claim 6, in which

= 0, 1, ... X-1 and

is the lowest ECCE corresponding to the E-PDCCH, or the ECCE corresponding to the E-PDCCH and associated with the demodulation reference symbol port (DM-RS). 8. The UE according to claim 5, wherein when the E-PDCCH UE mapping method is a distributed mapping, the determination module determines the PUCCH resources of the UE in accordance with the following formula configured by the eNB for the UE:

, Where

is a given parameter, semi-statically configured by the upper level,

is the index of the PRB occupied by the E-PDCCH, Z is the maximum number of DCI segments carried in each PRB in a distributed display, and

is an index of a group of resource elements (eREG), or ECCE, or DCI in each PRB. 9. The UE according to claim 8, in which

= 0, 1, ... Z-1 and

is the lowest ECCE corresponding to the E-PDCCH, or the ECCE corresponding to the E-PDCCH and associated with the DM-RS port. 10. eNB containing: a configuration module configured to configure various PUCCH calculation formulas for various E-PDCCH mapping methods of the UE, so that the UE determines its PUCCH resources in accordance with a predetermined parameter configured by the eNB and a PUCCH calculation formula corresponding to the display method of its E-PDCCH, wherein the mapping method consists of localized mapping and distributed mapping, and wherein said PUCCH calculation formula for E-PDCCH in the localized mapping method and said PUCCH calculation formula for E-PDCCH in the distributed mapping method are different. 11. User equipment (UE), containing: a first determining module configured to determine a starting point of PUCCH resources of the UE in accordance with the E-PDCCH payload and the E-PDCCH UE mapping method; and a second determination module, configured to determine the PUCCH resources of the UE in accordance with the starting point of the PUCCH resources of the UE and the PUCCH calculation formula, moreover, the mapping method consists of localized mapping and distributed mapping, and wherein said starting point of PUCCH resources for an E-PDCCH in a localized mapping method and said starting point of PUCCH resources for an E-PDCCH in a distributed mapping method are different. 12. The UE according to claim 11, in which the E-PDCCH payload is determined through the number of ECCE or the number of PRBs indicated by the physical channel of the control format identifier (EPCFICH). 13. The UE according to claim 11, wherein the starting point of the PUCCH in the E-PDCCH mapping method is in close proximity to the possible maximum PUCCH resource index in another E-PDCCH mapping method.

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