CN105122673A

CN105122673A - Reconfiguration control channel resource mapping collision avoidance

Info

Publication number: CN105122673A
Application number: CN201480011167.6A
Authority: CN
Inventors: 何宏; 韩承希; 符仲凯; 阿列克谢·弗拉基米罗维奇·科尔亚耶夫
Original assignee: Intel IP Corp
Current assignee: Intel IP Corp
Priority date: 2013-04-04
Filing date: 2014-04-01
Publication date: 2015-12-02
Anticipated expiration: 2034-04-01
Also published as: WO2014165517A1; TW201505403A; US20140301354A1; ES2693462T3; JP2016517648A; CN110381542B; CN105027499B; EP2982158A4; EP2982154A1; HK1217070A1; US20160192410A1; EP2982056A1; TWI577200B; EP2982058A1; WO2014165411A1; TWI535307B; EP2982219A4; EP2982158A1; EP2982154A4; TW201445961A

Abstract

A device includes a transceiver to receive, from a base station, a physical downlink shared channel (PDSCH) transmission and processing circuitry to classify downlink (DL) subframe types for a set of DL subframes associated with a first uplink (UL) subframe for transmission of a hybrid automatic report request acknowledgment (HARQ-ACK) and perform physical uplink control channel (PUCCH) resources mapping based on the classified DL subframe Types for an acknowledgement transmission associated with PDSCH transmission reception.

Description

Reconfiguration control channel resource mapping collision avoidance

RELATED APPLICATIONS

This application claims priority to U.S. application serial No. 14/141,876 filed on day 27 of 2013, month 12, and U.S. application serial No. 14/141,876 claims priority to U.S. provisional application serial No. 61/808,597 filed on day 4 of 2013, month 4, both of which are incorporated herein by reference in their entirety.

Background

LTE (long term evolution) communications are evolving, with more and more releases (releases) designed to optimize bandwidth utilization and throughput performance. The use of User Equipment (UE) continues to increase, impeding the ability of communication systems to handle the ever-increasing demand for bandwidth.

Drawings

Fig. 1 is a schematic diagram of an example configuration of a communication network architecture according to an example embodiment.

Fig. 2 is a timing diagram illustrating a Physical Uplink Control Channel (PUCCH) resource collision problem according to an example embodiment.

Fig. 3 is a timing diagram illustrating UL/DL configuration 2 implemented by flexibly changing the transmission direction of subframes #3 and #8 from UL to DL to satisfy an instantaneous traffic condition according to an example embodiment.

Fig. 4 is a table identifying the downlink association set index K for TDD according to the DL reference (DL-reference) UL/DL configuration table 10.1.3.1-1 in 3GPP release 11, according to an example embodiment.

Fig. 5 is a table identifying j and l values for DL subframes within set K associated with subframe 7 for HARQ-ACK feedback, according to an example embodiment.

Fig. 6 is a table of HARQ-ACK resource offset fields identifying DCI formats for corresponding EPDCCHs, according to an example embodiment.

Fig. 7 is a timing diagram illustrating PUCCH mapping according to an example embodiment.

Fig. 8 is a block diagram of a higher layer configuration determination for transmission according to PDSCH, according to an example embodimentIn which in sub-frame n-k_iNo corresponding PDCCH/EPDCCH is detected.

FIG. 9 is a block diagram for determining from a higher layer configuration, according to an example embodimentTable of values of (a).

Fig. 10 is a flowchart illustrating a method of Physical Uplink Control Channel (PUCCH) resource mapping, according to an example embodiment.

Fig. 11 is a flowchart illustrating a method of classifying DL subframe types according to an example embodiment.

Fig. 12 is a flowchart illustrating a method of determining an offset of a type 1DL subframe according to an example embodiment.

Fig. 13 is a flowchart illustrating a method of determining an offset of a type 2DL subframe according to an example embodiment.

FIG. 14 is a block diagram of electronic circuitry for performing one or more methods according to an example embodiment.

Detailed Description

In the following description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments which may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural, logical and electrical changes may be made without departing from the scope of the present invention. The following description of example embodiments is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Fig. 1 is a schematic diagram of an example configuration of a communication network architecture 100, according to some embodiments. Within the communication network architecture 100, a carrier-based network (e.g., an IEEE802.11 compliant wireless access point, or an LTE/LTE-a cell network operating in accordance with standards from the 3GPP family of standards) is established by the network device 102. The network device 102 may include a wireless access point, Wi-Fi hotspot, or enhanced or evolved node B (enodeb) in communication with communication devices 104A, 104B, 104C (e.g., User Equipment (UE) or communication Stations (STAs)). The carrier-based network includes wireless network connections 106A, 106B, and 106C with communication devices 104A, 104B, 104C, respectively. The communication devices 104A, 104B, 104C are shown to conform to various form factors, including smart phones, mobile phones, and personal computers with integrated or external wireless network communication devices.

Network device 102 is shown in fig. 1 as being connected to a network server 118 in cloud network 116 via network connection 114. The server 118 (or any of the individual servers) may operate to provide various types of information to the communication devices 104A, 104B, 104C, or to receive various types of information from the communication devices 104A, 104B, 104C, including device location, user profiles, user information, websites, emails, and the like. The techniques described herein enable determination of the location of various communication devices 104A, 104B, 104C relative to the network device 102.

The communication devices 104A, 104B, 104C may communicate with the network device 102 when within wireless communication range or otherwise in proximity. As shown, a connection 106A may be established between a mobile device 104A (e.g., a smartphone) and a network device 102; a connection 106B may be established between the mobile device 104B (e.g., mobile phone) and the network device 102; a connection 106C may be established between the mobile device 104C (e.g., a personal computer) and the network device 102.

The wireless communications 106A, 106B, and 106C between the devices 104A, 104B, 104C may utilize Wi-Fi or IEEE802.11 standard protocols, or protocols such as current third generation partnership project (3GPP) Long Term Evolution (LTE) Time Division Duplex (TDD) advanced systems. In an embodiment, communication network 116 and network device 102 comprise an Evolved Universal Terrestrial Radio Access Network (EUTRAN) that uses the third generation partnership project (3GPP) Long Term Evolution (LTE) standard and operates in Time Division Duplex (TDD) mode. The devices 104A, 104B, 104C may include one or more antennas, transceivers, transmitters, or receivers configured to utilize the following standards: Wi-Fi or IEEE802.11 standard protocols, or standards such as 3GPP, LTE or LTE-Advanced, or any combination of these or other communication standards.

The antennas in devices 104A, 104B, 104C or on devices 104A, 104B, 104C may include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas or other types of antennas suitable for transmission of RF signals. In some embodiments, a single antenna (rather than two or more antennas) with multiple apertures may be used. In these embodiments, each aperture may be considered a separate antenna. In some multiple-input multiple-output (MIMO) embodiments, the antennas may be effectively separated to take advantage of spatial diversity and different channel characteristics that may result between each antenna and the antennas of the transmitting station. In some MIMO embodiments, the antennas may be separated by up to 1/10 wavelengths or more.

In some embodiments, the mobile device 104A may include one or more of the following: a keyboard, a display, a non-volatile memory port, multiple antennas, a graphics processor, an application processor, a speaker, and other mobile device elements. The display may be an LCD screen, including a touch screen. The mobile device 104B may be similar to the mobile device 104A, but need not be the same. The mobile device 104C may include some or all of the features, components, or functions described for the mobile device 104A.

A base station (e.g., an enhanced or evolved node b (enodeb)) may provide wireless communication services to a communication device (e.g., device 104A). Although the exemplary communication system 100 of fig. 1 depicts only three device users 104A, 104B, 104C, in various embodiments any combination of multiple users, devices, servers, and the like may be coupled to the network device 102. For example, three or more users located at a location (e.g., a building, campus, shopping mall, or other area) may independently communicate with the network device 102 using any number of wireless-capable mobile computing devices. Similarly, the communication system 100 may include more than one network device 102. For example, multiple access points or base stations may form an overlapping coverage area in which a device may communicate with at least two instances of network device 102.

Although communication system 100 is illustrated as having several separate functional elements, one or more of the functional elements may be combined and may be implemented by combinations of software-configured elements (e.g., processing elements including Digital Signal Processors (DSPs)) and/or other hardware elements. For example, some elements may comprise one or more microprocessors, DSPs, Application Specific Integrated Circuits (ASICs), Radio Frequency Integrated Circuits (RFICs), and combinations of various hardware and logic circuitry for performing at least the functions described herein. In some embodiments, the functional elements of system 100 may refer to one or more processes running on one or more processing elements.

Embodiments may be implemented in one or a combination of hardware, firmware, and software. Embodiments may also be implemented as instructions stored on a computer-readable storage device, which may be read and executed by at least one processor to perform the operations described herein. The computer-readable storage device may include any non-transitory mechanism for storing information in a form readable by a machine (e.g., a computer). For example, a computer-readable storage medium may include Read Only Memory (ROM), Random Access Memory (RAM), magnetic disk storage media, optical storage media, flash memory devices, and other storage devices and media. In some embodiments, system 100 may include one or more processors and may be configured by instructions stored on a computer-readable storage device.

A new lte wid version 12 has recently been agreed on for "further enhancing lte tdd (redundancy enhancement for uplink/downlink (UL/DL) interface management and traffic adaptation)". Its main purpose is to enable tdd ul/DL reconfiguration for traffic adaptation for TD-LTE systems (including clustered small cell deployments). Unlike legacy (e.g., release 8) enbs, which are semi-static UL/DL configured, the duplex direction of flexible subframes in cells supporting the eIMTA release 12 feature may change dynamically. Many signaling options have been widely discussed in the eimta phase, including System Information Block (SIB), paging, Radio Resource Control (RRC), medium access layer (MAC) and physical layer signaling, features to support different traffic adaptation time scales.

One Physical Uplink Control Channel (PUCCH) resource collision problem caused by UL/DL reconfiguration features (whether SIB/paging/RRC/MAC/L1 signaling) was observed. An example of this problem is shown at 200 in fig. 2. Assume tdd UL/DL configuration 1 is indicated in system information block type 1(SIB1), but the actual tdd UL-DL configuration is UL/DL configuration 2 indicated at 210, which is achieved by flexibly changing the transmission direction of subframes #3 and #8 from UL to DL to meet the instantaneous traffic state and thus maximize the radio spectrum efficiency, as seen at 310 and 315 in fig. 3, respectively. The DL reference UL/DL configuration is known to release 12UL/DL reconfiguration capable UEs so that the UEs can utilize flexible subframe resources. Further, the UE may appropriately determine a hybrid automatic repeat request-acknowledgement (HARQ-ACK) timeline for Physical Dedicated Shared Channel (PDSCH) transmissions according to the DL reference UL/DL configuration. In this example, the DL reference UL/DL configuration is assumed to be tdd UL/DL configuration 2. It can be seen that the PUCCH resources associated with the two PDCCHs (PDCCH 1 in subframe #9 within 215 radio frame n-1 of LE1 and PDCCH2 in subframe #0 within 220 radio frame n of UE 2) are colliding in the same PUCCH1a/1b resource at UL subframe #7 at 225 in radio frame n. The reason for this problem is the same numbered first Control Channel Element (CCE) index (n)_CCE，m6) are used by two PDCCHs and two different PDSCHHARQ-ACK timing relationships are assumed at UE1 and UE2, respectively. As a result, the implicitly mapped PUCCH resources are identical at both LEs according to the following equation:

wherein n is_CCE，mIs the number of the first CCE used for transmission of the corresponding PDCCH in the subframe. This is a common PUCCH resource collision problem for all tdd ul/DL reconfiguration signalling methods. Two solutions have been proposed to solve this problem.

In one embodiment, PDSCH subframes are first divided into two types, type 1 and type 2. After classifying the subframes, PUCCH resource mapping is performed based on the DL subframe type. Furthermore, to avoid excessive control overhead, ARO (i.e., HARQ-ACK resource offset field) may be used to compress the PUCCH region.

For UL-DL reconfiguration support in release 12, there is no known PUCCH resource mapping scheme to avoid PUCCH resource mapping collision.

In one embodiment, downlink subframes associated with uplink subframes for HARQ-ACK feedback are classified into the following two types (i.e., type 1 and type 2) according to the tdd UL/DL configuration contained in the SIB1 message and the DL reference UL/DL configuration indicated by higher layer signaling:

the type 1 subframe is a DL subframe associated with UL subframe n for HARQ-ACK feedback according to SIB1tdd UL/DL configuration.

The type 2 subframe is a DL subframe constructed by a two-step method:

step 1: the type 2 subframe is a DL subframe associated with a UL subframe n for HARQ-ACK feedback according to a DL reference UL/DL configuration of a higher layer configuration. The configuration may be determined implicitly based on the tdd ul/DL configuration of two consecutive radio frames recorded in the previous IDF [1] or explicitly indicated by higher layer signaling.

Step 2: if the type 1 subframe overlaps with the type 2 subframe constructed in step 1, the overlapped subframe will be further removed from the type 2 subframe.

In one embodiment (as shown at 300 in fig. 3), assuming TDD configuration 1 is indicated in SIB1 and the DL reference UL/DL configuration is configuration #2, the type 1 subframe includes subframe #1 at 305 and #0 at 310 in radio frame n. Meanwhile, the type 2 subframe includes subframe #3 at 320 in radio frame n and subframe #9 at 325 in radio frame n-1.

Solution 1: PUCCH format 1b with Channel Selection (CS). In order to solve the potential PUCCH resource collision problem, a hybrid PUCCH resource mapping method includes the following. Let M denote the number of elements in set K defined in table 10.1.3.1-1 in 3GPP release 11 shown at 400 in fig. 4, which identifies the downlink association set index K of the TDD according to the DL reference UL/DL configuration. The set K is also divided into two sets: k₁And K₂Each set comprising several subframes in set K. Set K₁Including all type 1 subframes, set K₂Including all type 2 subframes. M is M₁+M₂Wherein M is₁And M₂Respectively represent a set K₁And K₂The number of medium DL subframes.

According to DL reference UL/DL configurationRepresenting the sub-frame n-k_iAnd HARQ-ACK (i) as from subframe n-k_iIn which k is a number of times_iE is K, and i is more than or equal to 0 and less than or equal to M-1. Let j denote the set K₁Inner subframe n-k_iIn the ascending order of the value of i from j to 0, wherein j is greater than or equal to 0 and less than or equal to M₁-1, and l represents the set K₂Inner subframe n-k_iIn the order of increasing values of i from l to 0, where l is 0. ltoreq. M₂-1。

In one embodiment, assuming SIB1tdd UL/DL configuration is configuration 1 and DL reference UL/DL configuration is configuration 2, the respective j and l values of DL subframes within set K associated with subframe 7 for HARQ-ACK feedback are shown at 500 in fig. 5, which spans set K at 510 with DL subframe index in fig. 5₁And set K at 515₂For example.

After PDSCH subframes are indexed in the respective set, PUCCH resource mapping is performed as follows: for the corresponding PDCCH (or in sub-frame n-k)_iPDCCH indicating a downlink SPS release), if it corresponds to type 1 subframe j (0 ≦ j ≦ M)₁-1), then PUCCH resources

If it corresponds to type 2 subframe l (0. ltoreq. l. ltoreq.M)₂-1), then PUCCH resources

Or

Or

Wherein c is selected from {0, 1, 2, 3}, such that: n is a radical of_c≤n_CCE，j＜N_c+1，N_c≤n_CCE，i＜N_c+1，N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in detected subframe c, n_CCE，jAnd n_CCE，lIs the number of the first CCE used for transmission of the corresponding PDCCH in subframes j and l, respectively. Index j is the set K₁Index of type 1 subframe within, index l is set K₂Index of type 2 subframe within.

Is a PUCCH resource offset associated with the legacy PDCCH, configured by higher layers for PUCCH resource mapping.A PUCCH resource offset, which is a starting point for providing PUCCH resources for type 2 subframes, may be configured by higher layers in a UE-or cell-specific manner, or calculated using the following equation:

this PUCCH format 1a/1b resource for HARQ-ACK signal transmission in response to a PDSCH scheduled by a legacy PDCCH may also be optimized to avoid excessive control overhead by introducing a 2-bit ARO (HARQ-ACK resource offset field) and taking into account the fact that the dynamic PUCCH format 1a/1b resource space is often underutilized. If UL/DL reconfiguration has been activated for one UE, there is always an explicit 2-bit ARO indication field for all DL dci formats carried by UE-specific search spaces on legacy PDCCH across all DL subframes, regardless of subframe type. Equations (1-0), (2-0), (3-0), and (4-0) can be directly extended to (1-1), (2-1), (3-1), and (4-1) by using 2-bit ARO:

Δ_ARObased on the M value, is determined as follows: if M is 1, then Δ_AROThe HARQ-ACK resource offset field in the DCI format for the corresponding EPDCCH is determined according to table 10.1.2.1-1. If M > 1, then Δ_AROThe HARQ-ACK resource offset field in the DCI format for the corresponding EPDCCH is determined according to table 1 given at 600 in fig. 6.

If a corresponding DCI is transmitted on at least a Common Search Space (CSS) on a legacy PDCCH in a type 1 subframe, the UE should assume Δ for PUCCH resource mapping using equations (1-1) and (2-1)_ARO＝0。

Several solutions can be considered for delta₁Or Δ₂Definition of (1):

for type 1 subframes: alternative 1: the same applies to 0-and M ═ 1.

Alternative 2:

alternative 2-0: - (M)₁-j-1)·N_c-j·N_c+1

Alternative 2-1: -M₁·(N_c-N_c-1)

Alternative 2-2: -j (N)_c+1-N_c)

Alternatives 2-3: - (N)_c+1-N_c)

Alternatives 2-4: -M₁·N_c

By assuming M at 700 in FIG. 7₁One example of alternative 2 is shown at 3. As clearly shown in the figure, PUCCH overhead of type 1 subframes can be flexibly reduced by appropriately selecting an ARO setting on the eNB side.

For type 2 subframes, Δ₁And Δ₂All possible values can be obtained by replacing the symbol j with the symbol l and by using the symbol M₂Substitution symbol M₁Is reused. Furthermore, some additional values may be used in further embodiments:

alternative 0:

alternative 1: m₁·N₄

Alternative 2:

alternative 1 and alternative 2 can be usedTo ensure that PUCCH is always available and does not incur eNB scheduler constraints. For PDSCH transmission (subframe n-k)_iWhere no corresponding PDCCH/EPDCCH is detected),is determined from the higher layer configuration and table 9.2-2 shown at 800 in fig. 8.

For the corresponding EPDCCH (or in subframe n-k)_i(where k is_iEPDCCH in e K) indicating downlink SPS release), if EPDCCH-PRB set (EPDCCH-PRB-set) q is configured for distributed transmission, the UE should use:

if the EPDCCH-PRB set q is configured for localized transmission:

wherein n is_ECCE，qIs used for sub-frame n-k_iThe number of the first ECCE of the transmission of the corresponding DCI allocation in the EPDCCH-PRB set q (i.e. the lowest ECCE index used to construct the EPDCCH), the EPDCCH-PRB set qBy higher layer parameter pucch-ResourceStartOffset-r11 configuration, subframe n-k_iOf EPDCCH-PRB set q in (1)Given in section 6.8A.1 of 3GPPTS36.211V.11.2.0, n' is according to the number used for subframe n-k_iThe antenna port for transmission of the medium EPDCCH is determined, which is described in section 6.8a.5 in 3gpp ts 36.211v.11.2.0. If i is 0, then Δ_AROThe HARQ-ACK resource offset field in the DCI format of the corresponding EPDCCH is determined according to the values given in table 10.1.2.1-1. If i > 0, then Δ_AROThe HARQ-ACK resource offset field in the DCI format of the corresponding EPDCCH is determined according to the table 10.1.3.1-2, where variable m in the table is replaced by i. If the UE is configured to monitor sub-frame n-k_ilEPDCCH of (1), thenIs equal to sub-frame n-k_ilIs configured as the number of ECCEs in the EPDCCH-PRB set q for the UE. If the UE is not configured to monitor subframes n-k_ilEPDCCH of (1), thenEqualing the assumption that EPDCCH-PRB set q is configured for subframe n-k_ilThe number of the ECCE calculated by the UE. For normal downlink CP, if subframe n-k_ilIs a special subframe with a special subframe configuration of 0 or 5, thenEqual to 0. For extended downlink CP, if subframe n-k_ilIs a special subframe with special subframe configuration 0 or 4 or 7, thenEqual to 0.

In some configurations, different DL subframes in a bundling window (bundling window) may have different numbers of ECCEs per PRB pair (even for the same EPDCCH set k, e.g., special subframes, etc.) and also different minimum aggregation levels, in view of the above fact, in order to avoid unnecessary PUCCH overhead, equations (5-0) and (6-0) may become (5-1) and (6-1):

wherein L is_iRepresenting the minimum supportable aggregation level in subframe i.

With the second solution, solution 2, PUCCH format 3 is used for HARQ-ACK feedback in another embodiment. On the other hand, another potential solution is that one (e.g., for one antenna port case) or two (e.g., for two antenna port case) PUCCH format 1a/1b resources are configured by higher layers for UL/DL reconfiguration capable UEs, and PUCCH format 3 needs to be configured for HARQ-ACK transmission after activation of UL/DL reconfiguration for one UE.

For single PDSCH transmission or by sub-frames n-k_mIn the downlink SPS release indicated by detection of the corresponding PDCCH/EPDCCH (where k is_mE K), and the DAI value in PDCCH/EPDCCH is equal to '1', the UE should use PUCCH format 1a/1b and higher layer configured PUCCH format 1a/1b resources for HARQ-ACK feedback.

For a single PDSCH transmission where no corresponding PDCCH/EPDCCH is detected within subframe(s) n-K (where K e K) and no PDCCH/EPDCCH indicates a downlink SPS release within subframe(s) n-K (where K e K), the UE should determine PUCCH resources according to higher layer configuration and tables 9.2-2.

Otherwise, the UE should use PUCCH format 3 and PUCCH resourcesWhereinIs determined from the higher layer configuration and table 10.1.2.2.2-1 shown at 900 in fig. 9. If the DAI value is indicated to be greater than '1' in the PDCCH, the TPC field in the PDCCH allocation having the DAI value greater than '1' should be used to determine a PUCCH resource value from one of four PUCCH resource values configured by a higher layer, where the mapping is defined in table 10.1.2.2.2-1.

If a DAI value greater than '1' is indicated in the EPDCCH, the HARQ-ACK resource offset field in the DCI format of the corresponding EPDCCH allocation with a DAI value greater than '1' should be used to determine a PUCCH resource value from one of the four PUCCH resource values configured by the higher layer, where the mapping is defined in table 10.1.2.2.2-1.

Fig. 10 is a flow diagram illustrating a method 1000, the method 1000 beginning with a UE receiving a Physical Downlink Shared Channel (PDSCH) transmission from a base station at 1010. The processing circuitry is configured to classify a Downlink (DL) subframe type of a set of DL subframes associated with a first Uplink (UL) subframe for transmitting a hybrid automatic report request acknowledgement (HARQ-ACK) at 1020. The processing circuitry also performs Physical Uplink Control Channel (PUCCH) resource mapping based on the classified DL subframe type for acknowledgement transmissions associated with receipt of PDSCH transmissions, at 1030.

Fig. 11 is a flow diagram illustrating a method 1100 of classifying DL subframe types. At 1110, a type 1DL subframe is constructed with the following DL subframes: the DL subframe is associated with a first Uplink (UL) subframe for transmitting HARQ-ACK according to a Time Division Duplex (TDD) UL/DL configuration indicated in a System information Block type 1(SIB1) message. At 1120, a type 2DL subframe is constructed by first identifying a DL subframe associated with a first UL subframe for transmitting HARQ-ACK according to a DL reference UL/DL configuration of a higher layer configuration. If the type 1DL subframe overlaps the type 2DL subframe, the subframe that overlaps between the type 1 and type 2DL subframes is also removed out of the type 2DL subframe at 1130.

Fig. 12 is a flow diagram illustrating a method 1200 of determining an offset for a type 1DL subframe. At 1210, depending on a number of type 1DL subframes associated with a first UL subframe for transmitting HARQ-ACK, processing circuitry is used to determine a HARQ-ACK offset Δ for the type 1DL subframe based on a 2-bit HARQ-ACK resource offset field in a DCI format of a corresponding PDCCH_ARO. At 1220, if the number of type 1DL subframes is 1, the processing circuit begins selecting Δ from {0, -1, -2, 2}_AROThe value is obtained. At 1230, if the number of type 1DL subframes is greater than 1, the processing circuit proceeds from {0, Δ }₁-1，Δ₂-2, 2} of a value selected from₁Or Δ₂May be {0, - (M)₁-j-1)·N_c-j·N_c+1，-M₁(N_c-N_c-1)，-j(N_c+1-N_c)，-(N_c+1-N_c)，-M₁·N_cJ (0. ltoreq. j < M)₁) Is the index of the type 1DL subframe, M₁Is the number of type 1DL subframes, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，

Fig. 13 is a flow diagram illustrating a method 1300 of determining an offset for a type 2DL subframe. At 1310, depending on the number of type 2DL subframes associated with the first UL subframe for transmitting HARQ-ACK, processing circuitry is used to determine a HARQ-ACK offset for the type 2DL subframe based on a 2-bit HARQ-ACK resource offset field in a DCI format of the corresponding PDCCH. If the number of type 2DL subframes is 1, then at 1310, method 1300 processes to select Δ out of {0, -1, -2, 2}_AROThe value is obtained. At 1320, if the number of type 2DL subframes is greater than 1, the processing circuit proceeds from {0, Δ }₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂May be a value One of (0. ltoreq. l < M)₂) Is an index of a type 2DL subframe, M₁Is the number of type 1DL subframes associated with the same first UL subframe used for HARQ-ACK transmission, M₂Is the number of type 2DL subframes,andis a PUCCH resource offset associated with PDSCH on type 1DL subframes and type 2DL subframes, respectively, for PUCCH resource mapping, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

Figure 14 is a block diagram of a computer system specifically programmed to function as one or more different types of UEs, cell stations (including small cell stations and macro stations). The system may be used to implement one or more methods according to the described examples. In the embodiment illustrated in FIG. 14, hardware and an operating environment are provided to enable the computer system to perform one or more of the methods and functions described herein. In some embodiments, the system may be a small cell station, a macro cell station, a smartphone, a tablet, or other network device that may provide access and wireless network capabilities for one or more devices. These devices do not necessarily have all of the components included in fig. 14.

Fig. 14 illustrates a functional block diagram of a cell station 1400 according to some embodiments. Cell station 1400 may be adapted to function as a small cell station, a macro cell station, or a user equipment (e.g., a wireless cellular telephone, tablet, or other computer). Cell station 1400 may include physical layer circuitry 1402 to transmit signals to or receive signals from an eNB using one or more antennas 1401. Cell station 1400 may also include processing circuitry 1404, and processing circuitry 1404 may include a channel estimator, and the like. Cell station 1400 can also include a memory 1406. The processing circuitry may be configured to determine several different feedback values for transmission to the eNB, discussed below. The processing circuit may also include a Medium Access Control (MAC) layer.

In some embodiments, cell station 1400 may include one or more of the following: a keyboard, a display, a non-volatile memory port, multiple antennas, a graphics processor, an application processor, a speaker, and other mobile device elements. The display may be an LCD screen, including a touch screen.

One or more antennas 1401 utilized by cell station 1400 may include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas or other types of antennas suitable for transmission of RF signals. In some embodiments, a single antenna (rather than two or more antennas) with multiple apertures may be used. In these embodiments, each aperture may be considered a separate antenna. In some multiple-input multiple-output (MIMO) embodiments, the antennas may be effectively separated to take advantage of spatial diversity and different channel characteristics that may result between each antenna and the antennas of the transmitting station. In some MIMO embodiments, the antennas may be separated by up to 1/10 wavelengths or more.

Although cell station 1400 is shown with several separate functional elements, one or more of the functional elements may be combined and may be implemented by combinations of software-configured elements (e.g., processing elements including Digital Signal Processors (DSPs)) and/or other hardware elements. For example, some elements may comprise one or more microprocessors, DSPs, Application Specific Integrated Circuits (ASICs), Radio Frequency Integrated Circuits (RFICs), and combinations of various hardware and logic circuitry for performing at least the functions described herein. In some embodiments, the functional elements of system 100 may refer to one or more processes running on one or more processing elements.

Embodiments may be implemented in one or a combination of hardware, firmware, and software. Embodiments may also be implemented as instructions stored on a computer-readable storage device, which may be read and executed by at least one processor to perform the operations described herein. The computer-readable storage device may include any non-transitory mechanism for storing information in a form readable by a machine (e.g., a computer). For example, a computer-readable storage medium may include Read Only Memory (ROM), Random Access Memory (RAM), magnetic disk storage media, optical storage media, flash memory devices, and other storage devices and media. In some embodiments, one or more processors of cell station 1400 may be configured by instructions to perform the operations described herein.

In some embodiments, cell station 1400 may be configured to receive OFDM communication signals over a multicarrier communication channel in accordance with an OFDMA communication technique. The OFDM signal may include a plurality of orthogonal subcarriers. In some broadband multicarrier embodiments, an evolved node b (enb) may be part of a Broadband Wireless Access (BWA) network communication network, such as a Worldwide Interoperability for Microwave Access (WiMAX) communication network or a third generation partnership project (3GPP) Universal Terrestrial Radio Access Network (UTRAN) Long Term Evolution (LTE) communication network, although the scope of the invention is not limited in these respects. In these wideband multicarrier embodiments, cell station 1400 and the eNB may be configured to communicate in accordance with Orthogonal Frequency Division Multiplexing Access (OFDMA) techniques. The UTRAN LTE standard includes the third generation partnership project (3GPP) standard for UTRAN-LTE release 8 (2008/3) and release 10 (2010/12), including its various variants and evolutions.

In some LTE embodiments, the basic unit of radio resources is a Physical Resource Block (PRB). A PRB may include 12 subcarriers in the frequency domain and N consecutive 0.5ms symbols in the time domain, depending on the cyclic prefix length configured by higher layer parameters. In these embodiments, the PRB may include a plurality of Resource Elements (REs). REs are uniquely defined by an index pair (k, l) in a slot, where k is an index in the frequency domain and l is an index in the time domain.

The eNB may transmit two types of reference signals including demodulation reference signals (DM-RS), Common Reference Signals (CRS), and/or channel state information reference signals (CSI-RS). The DM-RS may be used by the UE for data demodulation. The reference signal may be transmitted in a predetermined PRB.

In some embodiments, the OFDMA technique may be a Frequency Domain Duplexing (FDD) technique using different uplink and downlink spectra or a Time Domain Duplexing (TDD) technique using the same spectrum for uplink and downlink.

In some other embodiments, cell station 1400 and the eNB may be configured to transmit signals transmitted using one or more other modulation techniques, such as spread spectrum modulation (e.g., direct sequence code division multiple access (DS-CDMA) and/or frequency hopping code division multiple access (FH-CDMA)), Time Division Multiplexing (TDM) modulation, and/or Frequency Division Multiplexing (FDM) modulation, although the scope of the embodiments is not limited in this respect.

In some embodiments, cell station 1400 may be part of a portable communication device, such as a Personal Digital Assistant (PDA), a laptop or portable computer with wireless communication capability, a netbook, a wireless telephone, a wireless headset, a pager, an instant messaging device, a digital camera, an access point, a television, a medical device (e.g., a heart rate monitor, a blood pressure monitor, etc.), or other device that may receive and/or transmit information wirelessly.

In some embodiments, a cell station may be configured to use one of 8 "transmission modes" for PDSCH reception: mode 1: single antenna port, port 0; mode 2: transmit diversity; mode 3: a large delay CDD; mode 4: closed-loop spatial multiplexing; mode 5: MU-MIMO; mode 6: closed-loop spatial multiplexing, single-layer; mode 7: single antenna port, cell site specific RS (port 5); mode 8: (New in version 9): single or dual layer transmission (port 7 and/or port 8) with cell station specific RS. The CSI-RS is used by the cell station for channel estimation (i.e., CQI measurement). In some embodiments, the CSI-RS is periodically transmitted at a particular antenna port (up to eight transmit antenna ports) at different subcarrier frequencies (assigned to the cell station) for estimating the MIMO channel. In some embodiments, when non-codebook based precoding is applied, a cell-station specific demodulation reference signal (DM-RS) may be precoded in the same manner as the data.

Example (c):

1. an apparatus, comprising:

a transceiver to receive a Physical Downlink Shared Channel (PDSCH) transmission from a base station; and

a processing circuit configured to:

classifying a Downlink (DL) subframe type of a set of DL subframes associated with a first Uplink (UL) subframe for transmitting a hybrid automatic report request acknowledgement (HARQ-ACK); and

performing Physical Uplink Control Channel (PUCCH) resource mapping based on the classified DL subframe type for acknowledgement transmissions associated with reception of PDSCH transmissions.

2. The apparatus of example 1, wherein the DL subframe type comprises:

a type 1DL subframe constructed from DL subframes associated with a first Uplink (UL) subframe for transmitting HARQ-ACK according to a Time Division Duplex (TDD) UL/DL configuration indicated in a system information block type 1(SIB1) message;

a type 2DL subframe, the type 2DL subframe being constructed by:

firstly, according to DL reference UL/DL configuration configured by a higher layer, identifying DL subframes associated with a first UL subframe for transmitting HARQ-ACK; and is

Subframes that overlap between type 1DL subframes and type 2DL subframes are also removed out of type 2DL subframes if they overlap.

3. The apparatus of any of examples 1-2, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 1DL subframes based on the following formula:

whereinIs a PUCCH resource offset associated with a legacy PDCCH, configured by higher layers for typePUCCH resource mapping of 1DL subframe, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block expressed as the number of subcarriers in the frequency domain, n_CCE，jIs the number of the first Control Channel Element (CCE) used for the transmission of the corresponding PDCCH in type 1DL subframe j, j (j is more than or equal to 0 and less than M₁) Is the index of the type 1DL subframe, M₁Is the number of type 1DL subframes.

4. The apparatus of example 3, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via the PDCCH on type 1DL subframes based on the following formula:

wherein j (j is more than or equal to 0 and is less than M₁) Is the index of type 1DL subframe, Δ_AROA finger HARQ-ACK resource offset value; the HARQ-ACK resource offset value is selected from predetermined values based on a 2-bit HARQ-ACK resource offset field in a Downlink Control Information (DCI) format depending on the number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission.

5. The apparatus of example 4, wherein, depending on the number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission, the processing circuitry is further to determine the HARQ-ACK offset Δ for the type 1DL subframe based on a 2-bit HARQ-ACK resource offset field in the DCI format of the corresponding PDCCH_ARO；

If the number of type 1DL subframes is 1, then Δ is selected from {0, -1, -2, 2}_AROA value of, and

from {0, Δ if the number of type 1DL subframes is greater than 1₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂May be {0, - (M)₁-j-1)·N_c-j·N_c+1，-M₁(N_c-N_c-1)，-j(N_c+1-N_c)，-(N_c+1-N_c)，-M₁·N_cJ (0. ltoreq. j < M)₁) Is the index of the type 1DL subframe, M₁Is the number of type 1DL subframes, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，

6. The apparatus of any of examples 1-5, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 2DL subframes based on higher layer signaling or based on the following formula:

or

Or

Wherein,is a PUCCH resource offset associated with PDSCH on type 2DL subframes for PUCCH resource mapping, c is selected {0, 1, 2, 3} such that N is_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block, n, in the frequency domain expressed as the number of subcarriers_CCE，lIs the number of the first Channel Control Element (CCE) used for the transmission of the corresponding PDCCH in type 2DL subframe l (0 ≦ l < M)₂) Is an index of a type 2DL subframe, M₂Is the number of type 2DL subframes, N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

7. The apparatus of example 6, wherein the PUCCH resource is offsetThe wave higher layer signal is configured in a user equipment specific manner or a cell specific manner, or is determined based on the following formula:

wherein M is₁Is the number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission, N₄Refers to PUCCH resources reserved for type 1DL subframes and calculated according to:

8. the apparatus of example 6, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions via PDCCH on type 2DL subframes based on the following formula:

or

Or

Wherein l (0 is more than or equal to l and less than M₂) Is the index of type 2DL subframe, Δ_AROReferring to a HARQ-ACK resource offset value, the HARQ-ACK resource offset value is selected based on a 2-bit HARQ-ACK resource offset field in a Downlink Control Information (DCI) format depending on the number of type 2DL subframes associated with a first UL subframe for HARQ-ACK transmission.

9. The apparatus of example 8, wherein, depending on the number of type 2DL subframes associated with the first UL subframe for HARQ-ACK transmission, the processing circuitry is further to determine the HARQ-ACK offset for the type 2DL subframe based on a 2-bit HARQ-ACK resource offset field in the DCI format of the corresponding PDCCH:

if the number of type 2DL subframes is 1, then Δ is selected from {0, -1, -2, 2}_AROA value of, and

from {0, Δ if the number of type 2DL subframes is greater than 1₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂Can be And l (0. ltoreq. l < M)₂) Is an index of a type 2DL subframe, M₁Is the number of type 1DL subframes associated with the same first UL subframe used for HARQ-ACK transmission, M₂Is the number of type 2DL subframes,andis a PUCCH resource offset associated with PDSCH on type 1DL subframes and on type 2DL subframes, respectively, for PUCCH resource mapping, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

10. The apparatus of any of examples 1-9, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via an Enhanced Physical Downlink Control Channel (EPDCCH) or an EPDCCH indicating a downlink semi-persistent scheduling (SPS) release in a type 1 or type 2 subframe, the user equipment should use if the EPDCCH Physical Resource Block (PRB) set q is configured for distributed transmission:

if the EPDCCH-PRB set q is configured for localized transmission, then

Wherein n is_ECCE，qIs used for sub-frame n-k_iOf a first ECCE of a transmission of a corresponding Downlink Control Information (DCI) allocation in a medium EPDCCH-PRB set qNumbering (i.e. the lowest ECCE index used to construct the EPDCCH), of the EPDCCH-PRB set qIs configured by a higher layer parameter pucch-ResourceStartOffset-r11, subframe n-k_iOf EPDCCH-PRB set q in (1)Given that n' is according to the number used for sub-frame n-k_iThe antenna port for transmission of the medium EPDCCH is determined, Δ_AROIs the HARQ-ACK resource offset.

11. The apparatus of example 10, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via the EPDCCH or the EPDCCH indicating a downlink SPS release in a type 1 or type 2 subframe, which the User Equipment (UE) should use:

or

Wherein L is_iIndicating the minimum supportable aggregation level in subframe i.

12. A method, comprising:

receiving, via a transceiver, a Physical Downlink Shared Channel (PDSCH) transmission from a base station;

classifying, via processing circuitry, a Downlink (DL) subframe type of a set of DL subframes associated with a first Uplink (UL) subframe for transmitting a hybrid automatic report request acknowledgement (HARQ-ACK); and

13. The method of example 12, wherein the DL subframe type comprises:

a type 2DL subframe, the type 2DL subframe being constructed by:

first identifying a DL subframe associated with a first UL subframe for transmitting HARQ-ACK in accordance with a DL reference UL/DL configuration of a higher layer configuration; and is

14. The method of any of examples 12-13, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 1DL subframes based on the following formula:

whereinIs the PUCCH resource offset associated with the legacy PDCCH, is configured by higher layers for resource mapping of type 1DL subframe PUCCH, c is selected from {0, 1, 2, 3} such that Nc ≦ n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block expressed as the number of subcarriers in the frequency domain, n_CCE，jIs the number of the first Control Channel Element (CCE) used for the transmission of the corresponding PDCCH in the type 1DL subframe j, j (j is more than or equal to 0 and less than M₁) Is the index of the type 1DL subframe, M₁Is the number of type 1DL subframes.

15. The method of example 14, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via PDCCH on type 1DL subframes based on the following formula:

16. The method of example 15, further comprising: determining a HARQ-ACK offset Δ for a type 1DL subframe based on a 2-bit HARQ-ACK resource offset field in a DCI format of a corresponding PDCCH depending on a number of type 1DL subframes associated with a first UL subframe for HARQ-ACK transmission_ARO；

from {0, Δ if the number of type 1DL subframes is greater than 1₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂May be {0, - (M)₁-j-1)·N_c-j·N_c+1，-M₁(N_c-N_c-1)，-j(N_c+1-N_c)，-(N_c+1-N_c)，-M₁·N_cJ (0. ltoreq. j < M)₁) Is the index of the type 1DL subframe, M₁Is the number of type 1DL subframes, c is selected from {0, 1, 2, 3} such that

17. The method of any of examples 12-16, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 2DL subframes based on higher layer signaling or based on the following formula:

or

Or

Wherein,is a PUCCH resource offset associated with PDSCH on type 2DL subframes for PUCCH resource mapping, c is selected {0, 1, 2, 3} such that N is_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block, n, in the frequency domain expressed as the number of subcarriers_CCE，lIs the number of the first Channel Control Element (CCE) used for the transmission of the corresponding PDCCH in type 2DL subframe l (0 ≦ l < M)₂) Is an index of a type 2DL subframe, M₂Is the number of type 2DL subframes, N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c。

18. The method of example 17, wherein the PUCCH resource offsetThe higher layer signal is configured in a user equipment specific manner or a cell specific manner, or is determined based on the following formula:

N_{P U C C H}^{(2)} = M_{1} | N_{4}

19. the method of example 17, further comprising performing PUCCH resource mapping for PDSCH transmission via PDCCH on type 2DL subframes based on the following formula:

or

Or

Wherein l (0 is more than or equal to l and less than M₂) Is the index of type 2DL subframe, Δ_AROA finger HARQ-ACK resource offset value; dependent on an association with a first UL subframe for HARQ-ACK transmissionA number of type 2DL subframes, a HARQ-ACK resource offset value is selected based on a 2-bit HARQ-ACK resource offset field in a Downlink Control Information (DCI) format.

20. The method of example 19, further comprising: depending on the number of type 2DL subframes associated with the first UL subframe for HARQ-ACK transmission, the HARQ-ACK offset for a type 2DL subframe is determined based on a 2-bit HARQ-ACK resource offset field in the DCI format of the corresponding PDCCH:

21. The method of any of examples 12-20, further comprising: performing PUCCH resource mapping for EPDCCH transmissions indicated via an Enhanced Physical Downlink Control Channel (EPDCCH) or an EPDCCH indicating a downlink semi-persistent scheduling (SPS) release in type 1 or type 2 subframes, if the EPDCCH Physical Resource Block (PRB) set q is configured for distributed transmission, the user equipment should use:

or if the EPDCCH-PRB set q is configured for localized transmission

Wherein n is_ECCE，qIs used for sub-frame n-k_iThe number of the first ECCE of the transmission allocated by the corresponding Downlink Control Information (DCI) in the EPDCCH-PRB set q (i.e., the lowest ECCE index used to construct the EPDCCH), the EPDCCH-PRB set qIs configured by a higher layer parameter pucch-ResourceStartOffset-r11, subframe n-k_iOf EPDCCH-PRB set q in (1)Given that n' is according to the number used for sub-frame n-k_iThe antenna port for transmission of the medium EPDCCH is determined, Δ_AROIs the HARQ-ACK resource offset.

22. The method of example 21, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via EPDCCH or EPDCCH indicating downlink SPS release in type 1 or type 2 subframes, which a User Equipment (UE) should use:

or

23. A machine-readable storage device having instructions to cause a machine to:

24. The machine-readable storage device of example 23, wherein the DL subframe type comprises:

a type 2DL subframe, the type 2DL subframe being constructed by:

Subframes that overlap between type 1DL subframes and type 2DL subframes are also removed from the type 2DL subframes if they overlap.

Although some embodiments have been described in detail, other modifications are possible. For example, the logic flows depicted in the figures do not require the particular order shown, or sequential order, to achieve desirable results. Other steps may be provided, or steps may be eliminated, from the described streams, or other components may be added to, or eliminated, from the described systems. Other embodiments may be within the scope of the following claims.

Claims

1. An apparatus, comprising:

a processing circuit configured to:

2. The device of claim 1, wherein the DL subframe type comprises:

a type 1DL subframe, the type 1DL subframe constructed from the following DL subframes: the DL subframe is associated with a first Uplink (UL) subframe for transmitting HARQ-ACK according to a Time Division Duplex (TDD) UL/DL configuration indicated in a System information Block type 1(SIB1) message;

a type 2DL subframe, the type 2DL subframe being constructed by:

first identifying a DL subframe associated with the first UL subframe for transmitting HARQ-ACK according to a DL reference UL/DL configuration of a higher layer configuration; and is

Also removing the overlapped subframes between type 1DL subframes and type 2DL subframes from the type 2DL subframes if the type 1DL subframes and the type 2DL subframes overlap.

3. The device of claim 1, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 1DL subframes based on the following formula:

whereinIs a PUCCH resource offset associated with legacy PDCCH, is higher layer configured for PUCCH resource mapping of type 1DL subframe, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block expressed as the number of subcarriers in the frequency domain, n_CCE，jIs the number of the first Control Channel Element (CCE) used for the transmission of the corresponding PDCCH in type 1DL subframe j, j (j is more than or equal to 0 and less than M₁) Is the index of the type 1DL subframe, M₁Is the number of said type 1DL subframes.

4. The device of claim 3, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via PDCCH on type 1DL subframes based on the following equation:

wherein j (j is more than or equal to 0 and is less than M₁) Is the index, Δ, of the type 1DL subframe_AROA finger HARQ-ACK resource offset value; the HARQ-ACK resource offset value is selected from predetermined values based on a 2-bit HARQ-ACK resource offset field in a Downlink Control Information (DCI) format depending on a number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission.

5. The device of claim 4, wherein the processing circuitry is further to based on a number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission, respectivelyTo determine the HARQ-ACK offset delta of a type 1DL subframe_ARO；

6. The device of claim 1, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 2DL subframes based on higher layer signaling or based on the following formula:

or

Or

Wherein,is a PUCCH resource offset associated with PDSCH on type 2DL subframes for PUCCH resource mapping, c is selected {0, 1, 2, 3} such that N is_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block, n, in the frequency domain expressed as the number of subcarriers_CCE，lIs the first channel control element (C) used for transmission of the corresponding PDCCH in type 2DL subframe lCE), l (0. ltoreq. l < M)₂) Is an index of a type 2DL subframe, M₂Is the number of type 2DL subframes, N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

7. The device of claim 6, wherein the PUCCH resource offsetThe higher layer signal is configured in a user equipment specific manner or a cell specific manner, or is determined based on the following formula:

8. the device of claim 6, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions via PDCCH on type 2DL subframes based on the following equation:

or

Or

Wherein l (0 is more than or equal to l and less than M₂) Is the index, Δ, of the type 2DL subframe_AROA finger HARQ-ACK resource offset value; the HARQ-ACK resource offset value is selected based on a 2-bit HARQ-ACK resource offset field in a Downlink Control Information (DCI) format depending on a number of type 2DL subframes associated with the first UL subframe for HARQ-ACK transmission.

9. The device of claim 8, wherein, depending on a number of type 2DL subframes associated with the first UL subframe for HARQ-ACK transmission, the processing circuitry is further to determine a HARQ-ACK offset for the type 2DL subframe based on a 2-bit HARQ-ACK resource offset field in the DCI format of the corresponding PDCCH:

if the number of type 2DL subframes is 1, then select Δ from {0, -1, -2, 2}_AROA value of, and

if the number of type 2DL subframes is greater than 1, then from {0, Δ }₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂May be {0, - (M)₂-l-1)·N_c-l·N_c+1，-M₂(N_c-N_c-1)，

And l (0. ltoreq. l < M)₂) Is the index of the type 2DL subframe, M₁Is the number of type 1DL subframes associated with the same first UL subframe used for HARQ-ACK transmission, M₂Is the number of type 2DL subframes,andis a PUCCH resource offset associated with PDSCH on type 1DL subframes and on type 2DL subframes, respectively, for PUCCH resource mapping, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

10. The device of claim 1, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via an Enhanced Physical Downlink Control Channel (EPDCCH) or an EPDCCH indicating a downlink semi-persistent scheduling (SPS) release in a type 1 or type 2 subframe, the user device should use if an EPDCCH Physical Resource Block (PRB) set q is configured for distributed transmission:

whereas if the EPDCCH-PRB set q is configured for localized transmission, then

Wherein n is_ECCE，qIs used for sub-frame n-k_iThe number of the first ECCE of the transmission allocated by the corresponding Downlink Control Information (DCI) in the EPDCCH-PRB set q (i.e., the lowest ECCE index used to construct the EPDCCH), the EPDCCH-PRB set qConfigured by a higher layer parameter pucch-ResourceStartOffset-r11, subframe n-k_iOf EPDCCH-PRB set q in (1)Given that n' is according to the number used for sub-frame n-k_iThe antenna port for transmission of the medium EPDCCH is determined, Δ_AROIs the HARQ-ACK resource offset.

11. The device of claim 10, wherein the processing circuitry is further to perform PUCCH resource mapping for PDSCH transmissions indicated via EPDCCH or EPDCCH indicating downlink SPS release in type 1 or type 2 subframes that the User Equipment (UE) should use:

or

12. A method, comprising:

13. The method of claim 12, wherein the DL subframe type comprises:

a type 2DL subframe, the type 2DL subframe being constructed by:

14. The method of claim 12, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 1DL subframes based on the following formula:

whereinIs a PUCCH resource offset associated with legacy PDCCH, is configured by higher layers for resource mapping of type 1DL subframe PUCCH, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block expressed as the number of subcarriers in the frequency domain, n_CCE，jIs the number of the first Control Channel Element (CCE) used for the transmission of the corresponding PDCCH in type 1DL subframe j, j (j is more than or equal to 0 and less than M₁) Is the index of the type 1DL subframe, M₁Is the number of said type 1DL subframes.

15. The method of claim 14, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via PDCCH on type 1DL subframes based on the following formula:

16. The method of claim 15, further comprising: determining a HARQ-ACK offset Δ for a type 1DL subframe based on a 2-bit HARQ-ACK resource offset field in a DCI format of a corresponding PDCCH depending on a number of type 1DL subframes associated with the first UL subframe for HARQ-ACK transmission_ARO；

from {0, Δ if the number of type 1DL subframes is greater than 1₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂May be {0, - (M)₁-j-1)·N_c-j·N_c+1，-M₁(N_c-N_c-1)，-j(N_c+1-N_c)，-(N_c+1-N_c)，-M₁·N_cJ 0 < j < M₁Is the index of type 1DL subframe, M₁Is the number of type 1DL subframes, c is selected from {0, 1, 2, 3} such that N_c≤n_CCE，j＜N_c+1，

17. The method of claim 12, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via a Physical Downlink Control Channel (PDCCH) on type 2DL subframes based on higher layer signaling or based on the following formula:

or

Or

Wherein,is a PUCCH resource offset associated with PDSCH on type 2DL subframes for PUCCH resource mapping, c is selected {0, 1, 2, 3} such that N is_c≤_nCCE，j＜N_c+1， Refers to the configuration of the downlink bandwidth,refers to the size of the resource block, n, in the frequency domain expressed as the number of subcarriers_CCF，lIs the number of said first Channel Control Element (CCE) used for the transmission of the corresponding PDCCH in type 2DL subframe l (0 ≦ l < M)₂) Is an index of a type 2DL subframe, M₂Is the number of type 2DL subframes, N_CFI，cIs the Control Format Indicator (CFI) value carried on the Physical Control Format Indicator Channel (PCFICH) in the detected type 2 subframe c.

18. The method of claim 17, in which the PUCCH resource offsetThe higher layer signal is configured in a user equipment specific manner or a cell specific manner, or is determined based on the following formula:

19. the method of claim 17, further comprising performing PUCCH resource mapping for PDSCH transmission via PDCCH on type 2DL subframes based on the following formula:

or

Or

20. The method of claim 19, further comprising: determining a HARQ-ACK offset for a type 2DL subframe based on a 2-bit HARQ-ACK resource offset field in the DCI format of the corresponding PDCCH depending on a number of type 2DL subframes associated with the first UL subframe for HARQ-ACK transmission:

if the number of type 2DL subframes is greater than 1, then from {0, Δ }₁-1，Δ₂-2, 2} of_AROValue of, wherein₁Or Δ₂It may be a combination of 0 s,-(M₂-l-1)·N_c-l·N_c+1，-M₂(N_c-N_c-1)，

21. The method of claim 12, further comprising: performing PUCCH resource mapping for PDSCH transmissions indicated via an Enhanced Physical Downlink Control Channel (EPDCCH) or an EPDCCH indicating a downlink semi-persistent scheduling (SPS) release in type 1 or type 2 subframes, the user equipment should use if an EPDCCH Physical Resource Block (PRB) set q is configured for distributed transmission:

whereas if the EPDCCH-PRB set q is configured for localized transmission, then

WhereinIs used for sub-frame n-k_iThe number of the first ECCE of the transmission allocated by the corresponding Downlink Control Information (DCI) in the EPDCCH-PRB set q (i.e., the lowest ECCE index used to construct the EPDCCH), the EPDCCH-PRB set qConfigured by a higher layer parameter pucch-ResourceStartOffset-r11, subframe n-k_iOf EPDCCH-PRB set q in (1)Given that n' is according to the number used for sub-frame n-k_iThe antenna port for transmission of the medium EPDCCH is determined, Δ_AROIs the HARQ-ACK resource offset.

22. The method of claim 21, further comprising performing PUCCH resource mapping for PDSCH transmissions indicated via EPDCCH or EPDCCH indicating downlink SPS release in type 1 or type 2 subframes, which the User Equipment (UE) should use:

or

24. The machine-readable storage device of claim 23, wherein the DL subframe type comprises:

a type 2DL subframe, the type 2DL subframe being constructed by: