CN102932918B

CN102932918B - Physical Uplink Control Channel distribution method, subscriber equipment and base station

Info

Publication number: CN102932918B
Application number: CN201110226838.9A
Authority: CN
Inventors: 张小龙; 龚政委
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-08-09
Filing date: 2011-08-09
Publication date: 2016-03-30
Anticipated expiration: 2031-08-09
Also published as: CN102932918A

Abstract

The invention discloses a kind of Physical Uplink Control Channel distribution method, for obtaining the first PUCCH resource and the second PUCCH resource, described first PUCCH resource corresponds to the first day line cap of described UE, and described second PUCCH resource corresponds to second antenna port of described UE.Wherein, the quantity of described first PUCCH resource is greater than the quantity of described second PUCCH resource.The invention also discloses a kind of base station and subscriber equipment.The present invention can reasonable distribution PUCCH, realizes obtaining between the resource consumption and performance gain of PUCCH compromise preferably.

Description

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

Technical Field

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

Background

A third generation partnership project (3rd generation partnership project, 3GPP for short) evolved universal radio access (E-UTRA for short) system includes a User Equipment (UE) and a base station, an uplink system between the UE and the base station transmits information by using a single carrier (single carrier) frequency division multiple access technology, where the information includes: uplink control signaling and user plane data of the UE.

The uplink system bandwidth is used for transmitting user plane data of the UE except for the upper edge and the lower edge; when the uplink control signaling needs to be transmitted, the uplink control signaling is transmitted by using the resources reserved for a Physical Uplink Control Channel (PUCCH) by the upper and lower edges of the uplink system bandwidth.

The resource reserved for the PUCCH consists of one or more uplink control signaling resource units, wherein each uplink control signaling resource unit is 12 continuous subcarriers in frequency domain and one subframe in length in time. Each uplink control signaling resource unit is divided into two equal parts (each part is 12 continuous subcarriers in frequency domain and half subframe in length in time) in actual transmission, and is transmitted through an upper sideband and a lower sideband respectively.

With the rapid development of wireless communication services, a higher data transmission rate needs to be considered in a future network, and in a long term evolution system (long term evolution, LTE for short) and an Advanced long term evolution system (long term evolution-Advanced, LTE-a for short), in order to support the higher transmission rate, a multi-antenna technology is introduced in uplink transmission from a UE to a base station. The multi-antenna technology refers to a wireless communication technology in which multiple antennas are used at both a transmitting end and a receiving end, that is, a Multiple Input Multiple Output (MIMO) technology. The MIMO technology has different implementation modes including spatial multiplexing, beamforming, cyclic delay diversity, transmit diversity, and combinations of the above modes. Through different implementation modes of the MIMO, power gain, space diversity gain, space multiplexing gain, array gain and interference suppression gain can be obtained, so that the coverage area of a system, the stability of a link and the transmission rate of the system can be improved while the cost of the wireless communication system is not remarkably increased. The main principle of the transmit diversity is to provide more copies for signal transmission by using weak correlation of a spatial channel and combining selectivity on time/frequency, so as to improve reliability of signal transmission, thereby improving small signal-to-noise ratio (SNR) of a received signal.

In the prior art, a UE may transmit uplink control information of a user plane to a base station through two antenna ports. In addition, the reliability of UE transmission information can be further improved by combining the Spatial Orthogonal Resource Transmit Diversity (SORTD) technique and the MIMO technique. The SORTD technique is a transmit diversity technique adopted by the PUCCH in LTE-a at present, and the implementation principle is to allocate orthogonal resources of two PUCCHs to the UE, which can also be understood as allocating channels (channels) of two PUCCHs to the UE. Two antenna ports of the UE respectively occupy a channel of a PUCCH, and are used to respectively transmit the same information modulation symbol. Since the information is transmitted through mutually orthogonal PUCCH channels, the information modulation symbols are not interfered by each other. Therefore, the information modulation symbols transmitted by the two antenna ports of the UE reach the base station through two different orthogonal channels, and the transmit diversity is realized.

The SORTD technique described above may be applied to various PUCCH formats, such as format1/1a/1b/2/3 (format1/1a/1b/2/3) based on channel selection. The format1 is used for transmitting scheduling requirements of Acknowledgement (ACK) and Negative Acknowledgement (NACK); the format1a transmits ACK and NACK in subframes (subframes) of 1bit (bit) by using a Binary Phase Shift Keying (BPSK); the format1b transmits ACK and NACK in 2-bit subframes by using a Quadrature Phase Shift Keying (QPSK) modulation method; the format2 transmits Channel Quality Indicator (CQI) in 20bits of subframe by QPSK modulation; the format2a transmits CQI, ACK, and NACK through a 21-bit subframe by QPSK and BPSK modulation schemes; the format2b transmits CQI, ACK, and NACK in 21-bit subframes by QPSK and QPSK modulation schemes.

Currently, for PUCCH format1b based on channel selection, there is a need for a transmit diversity technique to achieve better transmit diversity.

Disclosure of Invention

The invention provides a physical uplink control channel allocation method, user equipment and a base station in multiple aspects, and aims to solve the problems of high resource consumption and low performance gain of a physical uplink control channel PUCCH.

One aspect of the present invention provides a method for allocating a physical uplink control channel, including:

a User Equipment (UE) acquires a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, and the second PUCCH resource set comprises a second PUCCH resource, wherein the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

the UE acquires a first PUCCH according to the first PUCCH resource and is used for transmitting uplink control information to a base station through the first antenna port on the first PUCCH; and

the UE acquires a second PUCCH according to the second PUCCH resource and is used for transmitting the uplink control information to a base station through the second antenna port on the second PUCCH;

wherein the number of the first PUCCH resources is greater than the number of the second PUCCH resources.

Another aspect of the present invention provides a method for allocating a physical uplink control channel, including:

a base station acquires a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, the second PUCCH resource set comprises a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

the first PUCCH resource is used for the UE to acquire a first PUCCH and transmit uplink control information to a base station through the first antenna port on the first PUCCH;

the second PUCCH resource is used for the UE to acquire a second PUCCH and transmit the uplink control information to a base station through the second antenna port on the second PUCCH;

the number of the first PUCCH resources is larger than the number of the second PUCCH resources.

Yet another aspect of the present invention provides a base station, including:

an obtaining unit, configured to obtain a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource, the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

Yet another aspect of the present invention provides a UE, including:

an allocating unit, configured to acquire a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource and the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE; and

a first obtaining unit, configured to obtain a first PUCCH according to the first PUCCH resource, so that the UE transmits uplink control information to a base station via the first antenna port on the first PUCCH; and

a second obtaining unit, configured to obtain a second PUCCH according to the second PUCCH resource, so that the UE transmits the uplink control information to a base station through the second antenna port on the second PUCCH;

According to the technical scheme, the PUCCH can be reasonably distributed, and a good compromise between the resource consumption and the performance gain of the PUCCH is achieved.

Drawings

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

Fig. 1 is a flowchart of a method for allocating a physical uplink control channel according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for allocating a physical uplink control channel according to another embodiment of the present invention;

fig. 3 is a flowchart of a method for allocating a physical uplink control channel according to another embodiment of the present invention;

fig. 4 is a flowchart of a method for allocating a physical uplink control channel according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a user equipment according to another embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.

Various aspects are described herein in connection with a terminal and/or a base station.

Terminals, devices that provide voice and/or data connectivity to a user, including wireless terminals or wired terminals. The wireless terminal may be a handheld device with a wireless connection function, or another processing device connected to a wireless modem, and is a mobile terminal that communicates with one or more core networks through a Radio Access Network (RAN). For example, wireless terminals may be mobile telephones (or "cellular" telephones) and computers with mobile terminals. As another example, a wireless terminal may be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device. For another example, the wireless terminal may also be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and the like. For another example, a wireless terminal may also be called a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a Mobile station (Mobile), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a user equipment (user device), or a user equipment (user equipment, abbreviated as UE).

A base station may refer to a device in an access network that communicates over the air-interface, through one or more cells, with wireless terminals. The base station may be configured to interconvert the received air frame with an Internet Protocol (IP) packet as a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an IP network. The base station may also coordinate management of attributes for the air interface. For example, the base station may be a base station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved node b (NodeB) in LTE, which is not limited in this disclosure.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Different embodiments of the present invention allocate a resource set of a first PUCCH and a resource set of a second PUCCH when selecting a PUCCH of format1b for an SORTD scheme, and a UE selects the first PUCCH resource and the second PUCCH resource respectively corresponding to two antenna ports of the UE from the resource sets of the first PUCCH and the second PUCCH, so as to implement that the UE transmits uplink control information to a base station through different antenna ports on the first PUCCH and the second PUCCH, respectively, and achieve a better tradeoff between resource consumption and performance gain of the PUCCH.

Hereinafter, specific embodiments will be described in detail with reference to the drawings.

As shown in fig. 1, a method for allocating a physical uplink control channel according to an embodiment of the present invention includes:

101: the method comprises the steps that User Equipment (UE) acquires a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, the second PUCCH resource set comprises a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, the second PUCCH resource corresponds to a second antenna port of the UE, and the number of the first uplink control channel PUCCH resources is larger than the number of the second uplink control channel PUCCH resources.

102: and the UE acquires a first PUCCH according to the first PUCCH resource and is used for transmitting uplink control information to a base station through the first antenna port on the first PUCCH.

103: and the UE acquires a second PUCCH according to the second PUCCH resource and is used for transmitting the uplink control information to a base station through the second antenna port on the second PUCCH.

In 101, the first PUCCH resource set may be a set of PUCCH resources corresponding to a first antenna port of the UE. In the embodiment of the present invention, the first antenna port of the UE is configured to send uplink control information of a first PUCCH corresponding to a first PUCCH resource acquired in a first PUCCH resource set. When the base station operates in a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode, the number of the first PUCCH resources in the first PUCCH resource set may be any one of 2,3, and 4. For example, when the base station operates in the FDD dual carrier aggregation mode and each carrier is a single codeword, the number of the first PUCCH resources in the first PUCCH resources is 2. For another example, when the base station operates in the FDD dual carrier aggregation mode, and one carrier is a single codeword, and the other carrier is a dual codeword, the number of the first PUCCH resources in the first PUCCH resources is 3. For another example, when the base station operates in the FDD dual carrier aggregation mode and each carrier is a dual codeword, the number of the first PUCCH resources in the first PUCCH resources is 4. Those skilled in the art can understand that when the base station operates in the TDD dual-carrier aggregation mode, the number of the first PUCCH resources in the first PUCCH resource set may also be selected to be different from 2 to 4 according to different codewords of the carriers, and details are not described here.

In this embodiment, assuming that the first PUCCH resource set is Y, thenWhere M ∈ {2,3,4 }. M is the number of first PUCCH resources, which is a positive integer,representing a first PUCCH resource in a first PUCCH resource set. When the first PUCCH resourceWhen the subscript m is 1, it is denoted as the first PUCCH resource in the first PUCCH resource set.

Also in 101, the above-mentioned second PUCCH resource set may be understood as a set of PUCCH resources corresponding to a second antenna port of the UE. In the embodiment of the present invention, the second antenna port of the UE is configured to send uplink control information of the second PUCCH acquired in the second PUCCH resource set.

In this implementationIn an example, the number of second PUCCH resources in the second PUCCH resource set may be selected according to the number of first PUCCH resources in the first PUCCH resource set. Assuming that the second PUCCH resource set is X, thenWherein N is more than or equal to 1 and less than M. N is the number of the second PUCCH resources and is a positive integer, andindicating a second PUCCH resource, wherein when the second PUCCH resource is usedWhen the subscript n is zero, it represents that the second PUCCH resource is the zero-th PUCCH resource in the second PUCCH resource set. According to the condition that N is more than or equal to 1 and less than M, the number of the second PUCCH resources is 1 when the number of the first PUCCH resources is 2; when the number of the first PUCCH resources is 3, the number of the second PUCCH resources may be 1 or 2; when the number of the first PUCCH resources is 4, the number of the second PUCCH resources may be any one of 1, 2, and 3. When the number of channels of PUCCH resources in the second PUCCH resource set is less than the number of channels of PUCCH resources in the first PUCCH resource set, consumption of channel resources of PUCCH can be reduced.

In 102, the UE may perform channel selection in the first PUCCH resource set according to a single antenna resource allocation rule to obtain a first PUCCH resourceAnd the uplink control information in the first PUCCH is sent through the first antenna port of the UE.

The single antenna resource allocation rule includes: a base station transmits downlink data to a UE through a physical downlink shared channel (PDSCH for short); UE transmits hybrid automatic repeat-request (HARQ) information on PUCCH for confirming reception of the downlink data; UE passes through physical downlink control channel (Phy)PDCCH for short) and corresponding relation of the PUCCH to obtain first PUCCH resource

In 103, the UE performs channel selection in the second PUCCH resource set to obtain a second PUCCH resource.

In this embodiment, the UE may obtain the second PUCCH resource according to a higher layer signaling allocation mannerFor example, the base station may transmit a second PUCCH resource to the UE through Radio Resource Control (RRC)Different combinations of (a). In the PDCCH, the UE may select the second PUCCH resource according to a field indication of Transmit Power Control (TPC)For confirming the second PUCCH resource that can be used by the UE through the selected combination. For example, the TPC is 2bits long, there may be 4 combinations, each of which represents one combination of the second PUCCH resources. And the UE acquires the second PUCCH resource through different combinations of the fields of the acquired TPC.

In this embodiment, the UE may also obtain and acquire the second PUCCH by using a number of a Control Channel Element (CCE) in the PUCCH in a CCE location mapping mannerThe position mapping mode means that the UE can determine the number of the first CCE occupied by the PDCCH through blind detection, and obtain the second PUCCH resource through a hidden mode

In this embodiment, the first PUCCH resource may be determined according to specific content of uplink control information sent by the UE to the base stationAnd, the first PUCCH resourceAnd a second PUCCH resourceCan also be defined as

n = \{\begin{matrix} 0, m < = 1 \\ 1, m > 1 \end{matrix} .

For example, when the first PUCCH resourceWhen subscript m of (1) is 0 or 1, the second PUCCH resourceSubscript n of (2) is 0. That is, when the first PUCCH resource is the No. zero PUCCH resource in the first PUCCH resource set or the No. first PUCCH resource, the second PUCCH resource is the No. zero PUCCH resource in the second PUCCH resource set. As another example, when the first PUCCH resourceWhen subscript m of (1) is greater than 1, the second PUCCH resourceThe subscript n of (a) is 1. That is, when the first PUCCH resource is not PUCCH resource No. zero or PUCCH resource No. first in the first PUCCH resource set, the second PUCCH resource is PUCCH resource No. first in the second PUCCH resource set.

In this embodiment, the first PUCCH and the second PUCCH are acquired through different channel resources, that is, the first PUCCH and the second PUCCH are different channels. When the number of the first PUCCHs is plural, the first PUCCHs are different channels from one another. Similarly, when the number of the second PUCCHs is multiple, the second PUCCHs are different channels from each other.

In this embodiment, according to specific content of uplink control information sent by the UE to a base station, an information modulation symbol corresponding to the uplink control information sent to the base station through the first antenna port or the second antenna port may be determined.

For example, according to the specific content of the uplink control information sent by the UE to the base station, it is determined to send a first information modulation symbol corresponding to the uplink control information to the base station through the first antenna port, and send a second information modulation symbol corresponding to the uplink control information to the base station through the second antenna port. The first information modulation symbol and the second information modulation symbol may have a corresponding relationship. Alternatively, the first information modulation symbol and the second information modulation symbol may be the same modulation symbol. When the UE transmits uplink control information having a correspondence relationship in the first PUCCH and the second PUCCH, an effect of transmit diversity gain can be obtained.

Therefore, the embodiment can reasonably allocate the PUCCH, and reduce the channel resource consumption of the PUCCH by selecting the number of the first PUCCH resource and the second PUCCH resource. And, by transmitting the uplink control information having the correspondence relationship in the first PUCCH and the second PUCCH, the transmit diversity gain is obtained, thereby obtaining a better tradeoff between channel resource consumption and performance gain.

A method for allocating a physical uplink control channel according to another embodiment of the present invention includes:

201: acquiring a first uplink control channel (PUCCH) resource set, wherein the number of first uplink control channel (PUCCH) resources corresponding to a first antenna port of User Equipment (UE) in the first uplink control channel (PUCCH) resource set is 3;

202: acquiring a second uplink control channel PUCCH resource set, wherein the number of second uplink control channel PUCCH resources corresponding to a second antenna port of User Equipment (UE) in the second uplink control channel PUCCH resource set is 1;

203: the user equipment acquires the first uplink control channel PUCCH according to the first uplink control channel PUCCH resource and acquires the second uplink control channel PUCCH according to the second uplink control channel PUCCH resource;

204: and the user equipment transmits uplink control information to a base station through the first antenna port corresponding to the first physical uplink control channel PUCCH and through the second antenna port corresponding to the second physical uplink control channel PUCCH on the first physical uplink control channel PUCCH and the second physical uplink control channel PUCCH respectively.

In 201 and 202, the main execution entities for acquiring the first PUCCH resource set and the second PUCCH resource set may be a base station or a UE. For example, the base station and the UE may derive the first PUCCH resource set or the second PUCCH resource set by themselves, respectively, in an implicit manner. For another example, the base station may allocate the first PUCCH resource set or the second PUCCH resource set to the UE in a display manner.

In 203, the selection of the first PUCCH resource may be selected according to a single antenna resource allocation rule in the first embodiment, and the selection of the second PUCCH resource may be selected according to a high layer signaling allocation manner in the first embodiment, which is not described herein again.

Referring to table 1 below, a mapping table of uplink control information and channel resources for the UE based on the channel selection Format1b is shown. And the UE sends an information modulation symbol corresponding to the uplink control information to the base station through the first antenna port and the second antenna port. For example, the uplink control information may be ACK, NACK, or Discontinuous Transmission (DTX).

In the present embodiment, each of three columns to which HARQ-ACK (0), HARQ-ACK (1), and HARQ-ACK (2) belong is represented by 1 bit. That is, the three pieces of information in each of the three columns to which HARQ-ACK (0), HARQ-ACK (1), and HARQ-ACK (2) belong together are 3 bits, or in other words, the three pieces of information in each of the three columns to which HARQ-ACK (0), HARQ-ACK (1), and HARQ-ACK (2) belong can be understood as being represented by 3 bits. For example, three ACKs in the second row of table 1 below may be understood as three ACK messages sent by the UE to the base station; the ACK, NACK/DTX, ACK in the third row of table 2 below may be understood as the UE sending ACK information, NACK/DTX information, and ACK information to the base station, respectively. In this embodiment, those skilled in the art can understand that the ACK may be represented by a machine language 1 during the transmission process, and the NACK/DTX may be represented by a machine language 0 during the transmission process, which is not limited in this disclosure.

With further reference to the description in table 1 below,the column to which this belongs represents the first PUCCH resource,the column to which the second PUCCH resource belongs. In this embodiment, the number of the first PUCCH resources is 3, and each of the first PUCCH resources isAndthe number of the second PUCCH resources is 1, and

according to the uplink control information (such as ACK/NACK/DTX) represented by 3 bits and the confirmed first PUCCH resource and the second PUCCH resource, the UE can confirm which first PUCCH or second PUCCH is used for transmitting information modulation symbols corresponding to the information. In Table 1 below_b(0)b(1)The column to which the information modulation symbol corresponds represents the information modulation symbol corresponding to the uplink control information. Similar to the first embodiment, the information modulation symbols in the first or second PUCCH are the same symbols. For example, according to the specific contents of three ACK messages in the second row of table 1 below, the UE acknowledges respectively through the first PUCCHAnd a second PUCCHAnd sending the three pieces of ACK information to a base station. Similarly, according to the specific content of the three pieces of ACK information, the UE confirms that the information modulation symbols corresponding to the three pieces of ACK information are modulation symbols corresponding to 1, 1. For another example, according to the detailed contents of ACK, NACK/DTX, and ACK information in the third row of table 1 below, the UE confirms that the ACK information respectively passes through the first PUCCHAnd a second PUCCHAnd transmitting the ACK information, the NACK/DTX information and the ACK information, wherein the information modulation symbols corresponding to the ACK information, the NACK/DTX information and the ACK information are modulation symbols corresponding to 1 and 0. For another example, according to the specific contents of the three DTX information in the last row of table 1 below, the UE confirms that the three DTX information will not be transmitted to the base station via the first PUCCH and the second PUCCH. Those skilled in the art will understand that the rest of the first and second channels can be derived in the same way as the following table 1The first PUCCH and the second PUCCH are used for transmitting uplink control information to the base station by the UE and information modulation symbols corresponding to the uplink control information. Those skilled in the art can also understand that, according to other manners, the corresponding relationship between the uplink control information and the information modulation symbol may also be derived, and details are not described herein.

TABLE 1

Therefore, the embodiment can reasonably allocate the PUCCHs, and reduce the channel resource consumption of the PUCCHs by selecting the number of the first PUCCH and the second PUCCH. And, by transmitting the uplink control information having the correspondence relationship in the first PUCCH and the second PUCCH, the transmit diversity gain is obtained, thereby obtaining a better tradeoff between channel resource consumption and performance gain.

The method for allocating physical uplink control channel according to another embodiment of the present invention includes:

301: acquiring a first uplink control channel (PUCCH) resource set, wherein the number M of first uplink control channel (PUCCH) resources corresponding to a first antenna port of User Equipment (UE) in the first uplink control channel (PUCCH) resource set is 4;

302: acquiring a second uplink control channel (PUCCH) resource set, wherein the number N of second uplink control channel (PUCCH) resources corresponding to a second antenna port of User Equipment (UE) in the second uplink control channel (PUCCH) resource set is 2;

303: the user equipment acquires the first uplink control channel PUCCH according to the first uplink control channel PUCCH resource and acquires the second uplink control channel PUCCH according to the second uplink control channel PUCCH resource;

304: and the user equipment transmits uplink control information to a base station through the first antenna port corresponding to the first physical uplink control channel PUCCH and through the second antenna port corresponding to the second physical uplink control channel PUCCH on the first physical uplink control channel PUCCH and the second physical uplink control channel PUCCH respectively.

In 301 and 302, the obtaining of the first PUCCH resource set and the second PUCCH resource set is described in relation to the second embodiment, and is not repeated here.

In 303, the selection of the first PUCCH resource is the same as the single antenna resource allocation rule in the first embodiment.

In this embodiment, when N is 2 and M is 4, the base station operates in a frequency division duplex FDD dual-carrier aggregation mode, and when a PDSCH of an auxiliary carrier is scheduled via a cross-carrier, or when N is 2 and M is 4, a number of frames of a downlink frame corresponding to an uplink frame in a time division duplex TDD dual-carrier mode according to a HARQ relationship is 1, and a PDSCH of the auxiliary carrier is scheduled via a cross-carrier, the second PUCCH resource is acquired according to the location mapping of the CCE. E.g. by cross-carrier scheduling, according toAnd

n_{P U C C H, 1}^{(2)} = n_{P U C C H, 3}^{(1)} + 1

obtaining the second PUCCHAnd

in this embodiment, when N is 2 and M is 4, the base station operates in a FDD dual-carrier aggregation mode and when the PDSCH of the secondary carrier is scheduled by the primary carrier, or when N is 2 and M is 4, the number of downlink frames corresponding to the HARQ relationship of the uplink frame in the TDD dual-carrier mode is 1 and the PDSCH of the secondary carrier is scheduled by the primary carrier, the second PUCCH resource is acquired according to the CCE location mapping and the high layer signaling. E.g. by the present carrier scheduling, according toObtaining the second PUCCHThe second PUCCHThe information may be obtained by higher layer signaling, and the obtaining by higher layer signaling is described in the first embodiment, which is not described herein again.

In this embodiment, when N is 2, M is 4, and the base station is located in a TDD single carrier aggregation system, the second PUCCH resource is acquired according to a higher layer signaling. The second PUCCH resource acquisition by higher layer signaling may refer to the related description in the first embodiment, which is not described herein again.

Referring to table 2 below, a mapping table of uplink control information and channel resources of the UE based on channel selection Format1b is provided. Wherein, each piece of information in the column to which the HARQ-ACK (0), the HARQ-ACK (1), the HARQ-ACK (2) and the HARQ-ACK (3) belong is information represented by 1 bit. That is, the four pieces of information in each row in the column to which HARQ-ACK (0), HARQ-ACK (1), HARQ-ACK (2), and HARQ-ACK (3) belong together have 4 bits. For example, four ACKs in the second row of table 2 below may be understood as four ACK messages sent by the UE to the base station; the ACK, NACK/DTX in the third row of Table 2 below may be understood as the UE sending ACK, and NACK/DTX information, respectively, to the base station. In this embodiment, those skilled in the art can understand that the ACK may be represented by a machine language 1 in the transmission process, and the NACK/DTX may be represented by a machine language 0 in the transmission process, which is not described herein again.

With further reference to the following table 2,the column to which this belongs represents the first PUCCH resource,the column to which the second PUCCH resource belongs. In this embodiment, the number of the first PUCCH resources is 4, and each of the first PUCCH resources isAndthe number of the second PUCCH resources is 2, respectivelyAnd

according to the information (e.g., ACK/NACK/DTX/ACK) represented by the 4 bits, and the confirmed first PUCCH resource and the second PUCCH resource, the UE can confirm which first or second PUCCH resource to transmit the information modulation symbol corresponding to the uplink control information. In Table 2 below_b(0)b(1)The column to which the information modulation symbol corresponds represents the information modulation symbol corresponding to the uplink control information. As in the first embodiment, the information modulation symbols in the channel resources of the first or second PUCCH are the same symbols. For example, four pieces of ACK information in the second row of table 2 below are respectively passed through the first PUCCHAnd a second PUCCHAnd transmitting, wherein the information modulation symbols corresponding to the four pieces of ACK information are modulation symbols corresponding to 1, 1. In another example, the ACK, and NACK/DTX information in the third row of Table 2 below is passed through the first PUCCHAnd a second PUCCHAnd transmitting, wherein the information modulation symbols corresponding to the ACK, ACK and NACK/DTX information are modulation symbols corresponding to 1, 1. As another example, DTX, NACK/DTX, and NACK/DTX information in the last row of table 2 below is not transmitted to the base station via the first PUCCH and the second PUCCH. Those skilled in the art will understand that the rest of the uplink control information transmitted by the UE to the base station via the first PUCCH and the second PUCCH, and the corresponding information modulation symbols thereof can be derived according to the following table 2. Those skilled in the art can also understand that, according to other manners, the corresponding relationship between the uplink control information and the information modulation symbol may also be derived, and details are not described herein.

The method for allocating a physical uplink control channel according to another embodiment of the present invention may be as follows.

401: a base station acquires a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, the second PUCCH resource set comprises a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

In 401, the base station obtains the relevant description in other embodiments of the first PUCCH resource set and the second PUCCH resource set, which is not described herein again.

Those skilled in the art will appreciate that all or part of the steps of implementing the above method embodiments may be implemented by hardware associated with program instructions, the program may be stored in a computer readable storage medium, and the program, when executed, performs a process including the above method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Another embodiment of the present invention provides a user equipment, whose main structure can be shown in fig. 5, including:

an allocating unit 501, configured to obtain a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource and the second PUCCH resource set includes a second PUCCH resource, where the first PUCCH resource corresponds to a first antenna port of the UE and the second PUCCH resource corresponds to a second antenna port of the UE; and

a first obtaining unit 502, configured to obtain a first PUCCH according to the first PUCCH resource, so that the UE transmits uplink control information to a base station through the first antenna port on the first PUCCH; and

a second obtaining unit 503, configured to obtain a second PUCCH according to the second PUCCH resource, so that the UE transmits the uplink control information to a base station through the second antenna port on the second PUCCH;

Wherein the number of the first PUCCH resources is M, wherein M belongs to {2,3,4 }; and

the number of the second PUCCH resources is N, wherein N is more than or equal to 1 and less than M.

The first obtaining unit 502 is further configured to obtain the first PUCCH resource according to a single-antenna PUCCH allocation manner.

The second obtaining unit 503 is further configured to obtain the second PUCCH resource according to a high-layer signaling allocation manner or location mapping of a control channel element CCE of a PDCCH.

The UE further includes a determining unit 504, configured to determine, according to uplink control information sent by the UE to the base station, to send an information modulation symbol representing the uplink control information to the base station through the first antenna port corresponding to the first PUCCH or through the second antenna port corresponding to the second PUCCH.

The second obtaining unit 503 is further configured to obtain the second PUCCH resource according to a higher layer signaling allocation scheme when N is equal to 1 and M is equal to 2,3, 4.

The second acquiring unit 503 is further configured to acquire the second PUCCH resource according to the location mapping of the CCE, when N is 2 and M is 4, the base station operates in a frequency division duplex FDD dual carrier aggregation mode, and when the PDSCH of the secondary carrier is scheduled via a cross carrier, or when N is 2 and M is 4, and the number of frames of a downlink frame corresponding to the HARQ relationship of the uplink frame in the TDD dual carrier mode is 1, and the PDSCH of the secondary carrier is scheduled via a cross carrier.

The second obtaining unit 503 is further configured to obtain the second PUCCH resource according to the CCE location mapping and a high-level signaling when N is 2 and M is 4, the base station operates in a frequency division duplex FDD dual-carrier aggregation mode, and when the PDSCH of the secondary carrier is scheduled by the local carrier, or when N is 2 and M is 4, the number of frames of a downlink frame corresponding to the HARQ relationship of the uplink frame in the TDD dual-carrier mode is 1, and the PDSCH of the secondary carrier is scheduled by the local carrier.

The second obtaining unit 503 is further configured to obtain the second PUCCH resource according to a higher layer signaling when N is 2, M is 4 and the system is located in a TDD single carrier system.

The UE in this embodiment may implement the actions performed by the UE in the physical uplink control channel allocation method in other embodiments, for example, the first allocation unit may perform the actions in the embodiment 101.

Another embodiment of the present invention provides a base station, whose main structure can be shown in fig. 6, including:

an obtaining unit 601, configured to obtain a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource, the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE.

The first PUCCH resource is used for the UE to acquire a first PUCCH and transmit uplink control information to a base station through the first antenna port on the first PUCCH.

And the second PUCCH resource is used for the UE to acquire a second PUCCH and transmit the uplink control information to a base station through the second antenna port on the second PUCCH.

Wherein the number of the first PUCCH resources is M, wherein M belongs to {2,3,4 }; the number of the second PUCCH resources is N, wherein N is more than or equal to 1 and less than M.

The base station in this embodiment may implement the actions performed by the base station in the physical uplink control channel allocation method in other embodiments, for example, the obtaining unit may perform the action 401 in an embodiment.

Another embodiment of the present invention also provides a communication system, which may include a user equipment and/or a base station. The user equipment communicates with the base station over a wireless link.

The user equipment is configured to: acquiring a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, and the second PUCCH resource set comprises a second PUCCH resource, wherein the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE; acquiring a first PUCCH according to the first PUCCH resource so that the UE transmits uplink control information to a base station through the first antenna port on the first PUCCH; acquiring a second PUCCH according to the second PUCCH resource so that the UE transmits the uplink control information to a base station through the second antenna port on the second PUCCH; wherein the number of the first PUCCH resources is greater than the number of the second PUCCH resources.

The base station is configured to acquire a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource, the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE.

Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A Physical Uplink Control Channel (PUCCH) allocation method, comprising:

wherein the number of the first PUCCH resources is greater than the number of the second PUCCH resources;

wherein the number of the first PUCCH resources is greater than the number of the second PUCCH resources, including:

the number of the first PUCCH resources is M, wherein M belongs to {2,3,4 }; and

the number of the second PUCCH resources is N, wherein N is more than or equal to 1 and is less than M;

wherein, the user equipment (ue) acquires a first PUCCH resource set and a second PUCCH resource set, the first PUCCH resource set includes a first PUCCH resource, the second PUCCH resource set includes a second PUCCH resource, including:

the UE acquires the first PUCCH resource according to a single-antenna PUCCH allocation mode, wherein the first PUCCH resource set is formed by the first PUCCH resource set; and

the UE acquires the second PUCCH resource according to a high-level signaling allocation mode or position mapping of a Control Channel Element (CCE) of a downlink control channel (PDCCH), wherein the set of the second PUCCH resource forms the second PUCCH resource set;

wherein,

the UE acquires the second PUCCH resource according to a high-level signaling allocation mode, and the method comprises the following steps: when N is 1 and M is 2,3,4, the UE acquires the second PUCCH resource according to a high-layer signaling allocation mode;

or,

the UE acquires the second PUCCH resource according to the position mapping of the Control Channel Element (CCE) of the downlink control channel (PDCCH), and the method comprises the following steps:

when N is 2 and M is 4, the base station works in a frequency division duplex FDD dual-carrier aggregation mode, and when a PDSCH of an auxiliary carrier is scheduled through cross-carrier, or when N is 2 and M is 4, the number of frames of a downlink frame corresponding to an uplink frame in a time division duplex TDD dual-carrier mode according to a hybrid automatic repeat request (HARQ) relationship is 1, and the PDSCH of the auxiliary carrier is scheduled through cross-carrier, the UE acquires the second PUCCH resource according to the position mapping of the CCE;

or,

the obtaining the second PUCCH resource according to the location mapping of the control channel element CCE of the downlink control channel PDCCH includes:

when N is 2 and M is 4, the base station works in a frequency division duplex FDD dual-carrier aggregation mode, and when a PDSCH of an auxiliary carrier is scheduled by the carrier, or when N is 2 and M is 4, the number of frames of a downlink frame corresponding to an uplink frame in a time division duplex TDD dual-carrier mode according to a hybrid automatic repeat request (HARQ) relationship is 1, and the PDSCH of the auxiliary carrier is scheduled by the carrier, the UE acquires the second PUCCH resource according to the CCE position mapping and a high-level signaling;

or,

the UE acquires the second PUCCH resource according to a high-level signaling allocation mode, and the method comprises the following steps: and when the N is 2, the M is 4 and the base station works in a Time Division Duplex (TDD) single carrier mode, the UE acquires the second PUCCH resource according to a high-layer signaling.

2. The method of claim 1, wherein the obtaining, by the UE, the first PUCCH resource according to a single antenna PUCCH allocation manner comprises:

the UE receives downlink data transmitted by a base station through a Physical Downlink Shared Channel (PDSCH); the UE transmits hybrid automatic repeat request (HARQ) information used for confirming the receiving of the downlink data on the PUCCH; and

and the UE acquires the first PUCCH resource through the corresponding relation between the position function of the physical downlink control channel PDCCH and the PUCCH.

3. The method of claim 1, wherein the obtaining, by the UE, the second PUCCH resource according to a higher layer signaling allocation manner includes:

the UE receives different combinations of second PUCCH resources in a second PUCCH resource set sent by the base station through Radio Resource Control (RRC);

and the UE selects one combination of different combinations of the second PUCCH resources in the PDCCH according to the field indication of the transmission power control TPC, and acquires the second PUCCH resources according to the selected combination.

4. The method of claim 1, wherein the obtaining, by the UE, the second PUCCH resource according to the location mapping of the control channel element CCE of the downlink control channel PDCCH comprises:

the UE blindly detects the first CCE occupied by the PDCCH; and

and the UE confirms the number of the first CCE and acquires the second PUCCH resource in an implicit mode.

5. The method of claim 1, further comprising:

and the UE determines to send an information modulation symbol representing the uplink control information to the base station through the first antenna port corresponding to the first PUCCH or through the second antenna port corresponding to the second PUCCH according to the uplink control information.

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

a base station acquires a first PUCCH resource set and a second PUCCH resource set, wherein the first PUCCH resource set comprises a first PUCCH resource, the second PUCCH resource set comprises a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

the number of the first PUCCH resources is larger than that of the second PUCCH resources;

wherein the UE acquires a first PUCCH resource set, comprising: the UE acquires the first PUCCH resource according to a single-antenna PUCCH allocation mode, wherein the first PUCCH resource set is formed by the first PUCCH resource set;

wherein the obtaining, by the UE, a second PUCCH resource set includes: the UE acquires the second PUCCH resource according to a high-level signaling allocation mode or position mapping of a Control Channel Element (CCE) of a downlink control channel (PDCCH), wherein the set of the second PUCCH resource forms the second PUCCH resource set;

wherein,

or,

7. A User Equipment (UE), comprising:

a first allocation unit, configured to obtain a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource and the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of the UE, and the second PUCCH resource corresponds to a second antenna port of the UE; and

wherein,

wherein the first obtaining unit is further configured to obtain the first PUCCH resource according to a single-antenna PUCCH allocation scheme,

the second obtaining unit is further configured to obtain the second PUCCH resource according to a high-level signaling allocation manner or location mapping of a control channel element CCE of the PDCCH;

wherein,

the second obtaining unit is further configured to obtain the second PUCCH resource according to a high layer signaling allocation manner when N is 1 and M is 2,3, 4;

or

The second acquiring unit is further configured to acquire the second PUCCH resource according to the location mapping of the CCE when N is 2 and M is 4, the base station operates in a frequency division duplex FDD dual carrier aggregation mode, and when the PDSCH of the auxiliary carrier is scheduled via a cross carrier, or when N is 2 and M is 4, the number of frames of a downlink frame corresponding to the HARQ relationship according to the uplink frame in the TDD dual carrier mode is 1, and the PDSCH of the auxiliary carrier is scheduled via a cross carrier;

or,

the second obtaining unit is further configured to obtain the second PUCCH resource according to the location mapping of the CCE and a high-level signaling when N is 2, M is 4, the base station operates in a frequency division duplex FDD dual-carrier aggregation mode, and when the PDSCH of the auxiliary carrier is scheduled by the local carrier, or when N is 2, M is 4, the number of frames of a downlink frame corresponding to the HARQ relationship of the uplink frame in the TDD dual-carrier mode is 1, and the PDSCH of the auxiliary carrier is scheduled by the local carrier;

or,

the second obtaining unit is further configured to obtain the second PUCCH resource according to a higher layer signaling when N is 2, M is 4, and the second obtaining unit is located in a TDD single carrier system.

8. The UE of claim 7, further comprising:

a determining unit, configured to determine, according to uplink control information sent by the UE to the base station, to send an information modulation symbol representing the uplink control information to the base station through the first antenna port corresponding to the first PUCCH or through the second antenna port corresponding to the second PUCCH.

9. A base station, comprising:

an obtaining unit, configured to obtain a first PUCCH resource set and a second PUCCH resource set, where the first PUCCH resource set includes a first PUCCH resource, the second PUCCH resource set includes a second PUCCH resource, the first PUCCH resource corresponds to a first antenna port of a UE, and the second PUCCH resource corresponds to a second antenna port of the UE;

the first PUCCH resource is used for the UE to acquire a first PUCCH and transmit uplink control information to a base station through the first antenna port on the first PUCCH; the second PUCCH resource is used for the UE to acquire a second PUCCH and transmit the uplink control information to a base station through the second antenna port on the second PUCCH;

wherein,

or,

or, the UE acquires the second PUCCH resource according to a high-level signaling allocation manner, including: and when the N is 2, the M is 4 and the base station works in a Time Division Duplex (TDD) single carrier mode, the UE acquires the second PUCCH resource according to a high-layer signaling.