CN106899395A - A transmission method and device for uplink control signaling in LAA transmission - Google Patents

Abstract

The invention provides a transmission method and a device of uplink control signaling in LAA transmission. The UE receives a first high-level signaling in the first step, wherein the first high-level signaling indicates L candidate carriers; receiving a first signaling in step two; second signaling is sent on the first carrier in step three, the carrier used for transmitting the second signaling being indicated by the first signaling. Wherein the first signaling is physical layer signaling, the second signaling comprises at least one of { scheduling request, K1 CSI groups, K2 HARQ-ACK groups }, and the second signaling is transmitted on a physical layer control channel. The L candidate carriers include at least one carrier deployed on an unlicensed spectrum. The first carrier is one of the L candidate carriers. The invention ensures that the time sequence of the uplink control signaling on the LAA carrier wave is not changed due to LBT, and maintains compatibility with the prior system to the maximum extent. In addition, the invention saves the redundancy overhead of high-level signaling.

Description

A transmission method and device for uplink control signaling in LAA transmission

technical field

The present invention relates to a communication scheme using an unlicensed spectrum in a wireless communication system, in particular to a communication method and device for sending uplink information on an unlicensed spectrum (Unlicensed Spectrum).

Background technique

In the traditional 3GPP (3rd Generation Partner Project, 3rd Generation Partnership Project) LTE system, data transmission can only occur on the licensed spectrum. However, with the rapid increase of traffic, especially in some urban areas, the licensed spectrum may be difficult Meet the needs of business volume. The 62nd plenary meeting of 3GPP RAN discussed a new research topic, that is, the research on unlicensed spectrum synthesis (RP-132085), the main purpose of which is to study the Non-standalone (non-independent) deployment of LTE on unlicensed spectrum, the so-called Non-standalone means that the communication on the unlicensed spectrum should be associated with the serving cell on the licensed spectrum. At the RAN#64 plenary meeting (seminar), the communication on the unlicensed spectrum was uniformly named LAA (License Assisted Access, licensed spectrum assisted access). LBT (Listen Before Talk, listening before communication) technology is adopted by LAA to prevent multiple transmitters from sending signals on the same time-frequency resource. At the 70th plenary meeting of 3GPP RAN, the enhanced LAA was formally approved as a project, and the uplink transmission on the LAA carrier is a research focus.

In traditional LTE (Long Term Evolution, Long Term Evolution) LAA communication, the PUCCH cannot be transmitted on the LAA carrier. Considering that LAA may be extended to DC (Dual Connectivity, dual connection) communication in the future, a problem that needs to be considered is how to send PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) information on the LAA carrier.

Contents of the invention

Due to the use of the LBT technology, a UE (User Equipment, user equipment) usually performs an LBT operation before sending PUCCH information. The inventor found through research that the LBT operation may cause the UE to drop (Drop) transmission on a given PUCCH. However, the HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request)-ACK carried on the PUCCH usually has strict timing requirements, that is, the uplink HARQ-ACK dropping may have a greater impact on the base station.

The present invention provides a solution to the above-mentioned problems. It should be noted that, if there is no conflict, the embodiments in the UE (User Equipment, user equipment) of this application and the features in the embodiments can be applied to the base station, and vice versa. Further, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

The present invention discloses a method in a UE supporting communication on an unlicensed frequency spectrum, which includes the following steps:

- Step A. Receive the first high-level signaling, the first high-level signaling indicates L candidate carriers

- Step B. Receiving the first signaling. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier.

- Step C. Sending the second signaling on the first carrier, the carrier used for transmitting the second signaling is indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers , the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ-ACKs. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers.

In traditional CA (Carrier Aggregation, carrier aggregation) and LAA, the carriers occupied by the PUCCH are configured semi-statically, and the PUCCH can only be sent on the licensed frequency spectrum. The essence of the above method is that the UE dynamically determines the carrier for sending the second signaling. The above method can ensure to the greatest extent that the transmission timing of the HARQ-ACK should not be changed by the LBT.

As an embodiment, the information transmitted on the physical layer control channel is generated by the physical layer.

As an embodiment, the first signaling includes an index of the first carrier, and the physical layer signaling is DCI (Downlink Control Information, downlink control information).

As an embodiment, the first signaling is transmitted on the first carrier, and the physical layer signaling is a characteristic sequence transmitted on a physical layer channel.

As an embodiment, the physical layer control channel is PUCCH.

As an embodiment, the K1 CSIs are respectively for the K1 carriers.

As an embodiment, the first carrier is one of the K2 carriers.

As an embodiment, the index of the first carrier is an index of the first carrier in the L candidate carriers.

As an embodiment, the index of the first carrier is a serving cell identity of the first carrier.

As an embodiment, the K2 carriers include at least one carrier deployed on licensed spectrum.

As an embodiment, the first high-level signaling is RRC (Radio Resource Control, radio resource control) dedicated (Dedicated) signaling.

As an embodiment, the first high-layer signaling is RRC common signaling.

As an embodiment, the L candidate carriers include at least one carrier deployed on the licensed frequency spectrum.

The advantage of the above embodiment is that, when all the carriers on the unlicensed spectrum are not suitable for carrying the second signaling due to interference, the second signaling can be transmitted on the licensed spectrum—rather than being abandoned.

As an embodiment, the L is a positive integer greater than 1.

As an example, said L is a positive integer.

As an embodiment, the CSI includes {CRI (CSI-RS Resource Indicator, CSI-RS resource indication), PTI (Precoding Type Indicator, precoding type indication), RI (Rank Indicator, rank indication), PMI (Precoding Matrix Indicator, precoding matrix indicator), CQI (Channel Quality Indicator, channel quality indicator)} at least one. The CRI is used to indicate one CSI-RS resource from multiple CSI-RS resources.

As an embodiment, the first signaling instructs the second signaling to be transmitted on the first carrier.

As an embodiment, the first signaling indicates that the physical layer control channel is included in the first time window on the first carrier, and the second signaling is transmitted in the first time window. As a sub-embodiment of the foregoing embodiment, the first time window is implicitly indicated by the sending time of the second signaling.

As an embodiment, the first signaling is common to all cells.

As an embodiment, the first signaling is transmitted on the first carrier, and the first signaling includes at least one of {Zadoff-Chu sequence, pseudo-random sequence}.

Specifically, according to an aspect of the present invention, it is characterized in that the first signaling includes an index of the first carrier, and the index of the first carrier is an index of the first carrier among the L candidate carriers.

In the above aspect, the first signaling explicitly indicates the first carrier. Configuring L candidate carriers by the base station can reduce redundancy (Overhead) of the second signaling.

As an embodiment of the above aspect, the first signaling is sent on the second carrier, and the second carrier is configured by high-level signaling.

As an embodiment of the foregoing aspect, the first signaling is sent on the second carrier, and the second carrier is deployed on a licensed frequency spectrum.

Specifically, according to one aspect of the present invention, it is characterized in that the step B also includes the following steps:

- Step B1. Detecting first signaling on said L candidate carriers.

Wherein, the first signaling is transmitted on the first carrier.

In the above aspect, the first signaling implicitly indicates the first carrier (through the bearer carrier), and configuring L candidate carriers by the base station can reduce the complexity of blind detection performed by the UE for the first signaling.

As an embodiment, the first signaling includes at least one of {Zadoff-Chu sequence, pseudo-random sequence}.

As an embodiment, in step B1, the UE detects the first signaling by coherent detection on each of the L candidate carriers.

As an embodiment, the UE assumes that the first signaling can only be sent on one carrier of the L candidate carriers.

Specifically, according to one aspect of the present invention, it is characterized in that the step B also includes the following steps:

- Step B2. Assume that the second signaling can be sent directly without interception.

Wherein, the first carrier is deployed in an unlicensed frequency spectrum.

The essence of the above aspect is that the UE does not perform the LBT operation before sending the second signaling. The above aspects can ensure that the sending timing of the second signaling is fixed (not changed due to LBT). Since the PUCCH only occupies a part of the bandwidth of the system frequency band, the non-execution of LBT will not cause the interference of the transmitter of the whole frequency band. Furthermore, the interference among multiple transmitters can be further resolved by the following method.

Specifically, according to the above aspect of the present invention, it is characterized in that the first signaling is transmitted on the first carrier and the time interval between the first moment and the second moment is smaller than a specific threshold. Wherein, the first moment is an end moment of a downlink burst (Burst) corresponding to the first signaling, and the second moment is a start moment of an uplink burst corresponding to the second signaling.

The essence of the above aspect is that when the time interval between the uplink transmission and the downlink transmission is less than a specific threshold, the uplink transmission can not perform LBT.

As an embodiment, the first moment is an expiry moment of time domain resources occupied by the first signaling.

As an embodiment, the second moment is a start moment of the time domain resource occupied by the second signaling.

As an embodiment, the specific threshold is a duration of one OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbol including a CP (Cyclic Prefix, cyclic prefix).

As an embodiment, the specific threshold does not exceed 2192*T microseconds, where T is 1/30720 milliseconds.

Specifically, according to one aspect of the present invention, it is characterized in that the step A further includes the following steps:

- Step A1. Receive the second high-layer signaling, the second high-layer signaling indicates L1 in-band resource indexes, and the L1 in-band resource indexes respectively correspond to L1 carrier bandwidths.

Wherein, the resource occupied by the physical layer control channel on the first carrier is indicated by a given in-band resource index, and the given in-band resource index is one of the L1 in-band resource indexes, and the given in-band resource index is one of the L1 in-band resource indexes, and the given The carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is an integer. If the L1 is greater than 1, the sizes of any two carrier bandwidths in the L1 carrier bandwidths are different.

The essence of the above aspect is that the resources occupied by the physical layer control channel in the candidate carriers with the same carrier bandwidth are the same. Compared with traditional carrier-specific PUCCH configuration parameters, the above aspects can reduce high-level signaling overhead.

As an embodiment, the L1 is 1, and the carrier bandwidths of the L2 candidate carriers are equal.

As an embodiment, the L1 is greater than 1, and the carrier bandwidth of any candidate carrier in the L2 candidate carriers is one of the L1 carrier bandwidths.

As an embodiment, the in-band resource index is a PUCCH resource index.

As an embodiment, the in-band resource index includes a PRB (Physical Resource Block, physical resource block) index and a PUCCH resource index.

As an embodiment, the second high layer signaling includes L1 sub-signalings, and the L1 sub-signalings are respectively used to indicate the L1 in-band resource indexes. As a sub-embodiment of this embodiment, the sub-signaling includes all or part of fields in PUCCH-Config IEs (Information Elements, information elements), and the PUCCH-Config IEs include PUCCH-ConfigCommon IE and PUCCH-ConfigDedicated IE .

As an embodiment, the in-band resource index consists of one or more PUCCH resources. As a sub-embodiment of this embodiment, the PUCCH resource corresponds to one of PUCCH formats {1, 1a, 1b, 2, 2a, 2b, 3, 4, 5}.

The invention discloses a method in a base station supporting communication on an unlicensed frequency spectrum, which includes the following steps:

- Step A. Send the first high-level signaling, the first high-level signaling indicates L candidate carriers

- Step B. Sending the first signaling. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier.

- Step C. Receiving second signaling on a first carrier, the carrier used for transmitting the second signaling being indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers , the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ-ACKs. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers.

As an embodiment, the L candidate carriers include at least one carrier deployed on the licensed frequency spectrum.

Specifically, according to an aspect of the present invention, it is characterized in that the first signaling includes an index of the first carrier, and the index of the first carrier is an index of the first carrier in the L candidate carriers.

Specifically, according to one aspect of the present invention, it is characterized in that the step B also includes the following steps:

- Step B2. The base station assumes that the UE sends the second signaling directly without intercepting.

Wherein, the first carrier is deployed in an unlicensed frequency spectrum.

Specifically, according to the above aspect of the present invention, it is characterized in that the first signaling is transmitted on the first carrier and the time interval between the first moment and the second moment is smaller than a specific threshold. Wherein, the first moment is the end moment of the downlink burst corresponding to the first signaling, and the second moment is the start moment of the uplink burst corresponding to the second signaling.

Specifically, according to one aspect of the present invention, it is characterized in that the step A further includes the following steps:

- Step A1. Sending second high-level signaling, the second high-level signaling indicates L1 in-band resource indices, and the L1 in-band resource indices correspond to L1 carrier bandwidths respectively.

Wherein, the resource occupied by the physical layer control channel on the first carrier is indicated by a given in-band resource index, and the given in-band resource index is one of the L1 in-band resource indexes, and the given in-band resource index is one of the L1 in-band resource indexes, and the given The carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is an integer. If the L1 is greater than 1, the sizes of any two carrier bandwidths in the L1 carrier bandwidths are different.

The invention discloses a user equipment, which is characterized in that the equipment includes:

The first module: used to receive the first high-level signaling, the first high-level signaling indicates L candidate carriers

The second module: used for receiving the first signaling. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier.

The third module: used to send the second signaling on the first carrier, and the carrier used to transmit the second signaling is indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers , the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ-ACKs. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers.

As an embodiment, the above user equipment is characterized in that the first signaling includes an index of the first carrier, where the index of the first carrier is an index of the first carrier in the L candidate carriers.

As an embodiment, the above user equipment is characterized in that the first module is further configured to detect the first signaling on the L candidate carriers. Wherein, the first signaling is transmitted on the first carrier. As a sub-embodiment of this embodiment, the first signaling includes a Zadoff-Chu sequence. As yet another sub-embodiment of this embodiment, the first signaling includes a pseudo-random sequence.

As an embodiment, the above user equipment is characterized in that the first signaling includes an index of the first carrier, and the index of the first carrier is an index of the first carrier in the L candidate carriers.

As an embodiment, the above user equipment is characterized in that the second module is further configured to detect the first signaling on the L candidate carriers. Wherein, the first signaling is transmitted on the first carrier.

As an embodiment, the above-mentioned user equipment is characterized in that the second module is further configured to assume that the second signaling can be sent directly without being intercepted. Wherein, the first carrier is deployed in an unlicensed frequency spectrum.

As an embodiment, the above-mentioned user equipment is characterized in that the first module is further configured to receive second high-level signaling, and the second high-level signaling indicates L1 in-band resource indices, and the L1 in-band resource indices correspond to L1 carrier bandwidth. Wherein, the resource occupied by the physical layer control channel on the first carrier is indicated by a given in-band resource index, and the given in-band resource index is one of the L1 in-band resource indexes, and the given in-band resource index is one of the L1 in-band resource indexes, and the given The carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is an integer. If the L1 is greater than 1, the sizes of any two carrier bandwidths in the L1 carrier bandwidths are different.

As an embodiment, the above user equipment is characterized in that the first signaling is transmitted on the first carrier and the time interval between the first moment and the second moment is smaller than a specific threshold. Wherein, the first moment is the end moment of the downlink burst corresponding to the first signaling, and the second moment is the start moment of the uplink burst corresponding to the second signaling.

The invention discloses a base station device, which is characterized in that the device includes:

The first module: used to send the first high-level signaling, the first high-level signaling indicates L candidate carriers

The second module: used for sending the first signaling. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier.

The third module: used for receiving the second signaling on the first carrier, and the carrier for transmitting the second signaling is indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers , the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ-ACKs. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers.

Compared with traditional methods, the present invention has the following technical advantages:

-.Ensure that the timing of uplink control signaling on the LAA carrier does not change due to LBT, and maintain compatibility with existing systems to the greatest extent

-. Saving redundant overhead of high-level signaling, where the high-level signaling is used to configure time-frequency resources occupied by uplink control signaling.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 shows a flow chart of sending signaling on an LAA carrier according to an embodiment of the present invention;

FIG. 2 shows a schematic diagram of dynamic switching of a physical layer control channel on multiple carriers according to an embodiment of the present invention;

Fig. 3 shows a schematic diagram of a first moment and a second moment according to an embodiment of the present invention;

Fig. 4 shows a schematic diagram of a carrier bandwidth-specific in-band resource index according to an embodiment of the present invention;

FIG. 5 shows a structural block diagram of a processing device in a UE according to an embodiment of the present invention;

Fig. 6 shows a structural block diagram of a processing device in a base station according to an embodiment of the present invention;

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined arbitrarily.

Example 1

Embodiment 1 exemplifies the flow chart of sending signaling on the LAA carrier, as shown in FIG. 1 . In Fig. 1, the serving cell of UE U2 is maintained by base station N1, and the steps identified in block F1 are optional.

For the base station N1, the first high layer signaling is sent in step S11, the first signaling is sent in step S13, and the second signaling is received on the first carrier in step S14.

For the UE U2, the first high layer signaling is received in step S21, the first signaling is received in step S13, and the second signaling is sent on the first carrier in step S14.

In Embodiment 1, the first high layer signaling indicates L candidate carriers. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier. The first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, the K1 CSI groups are respectively for K1 carriers, so The CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ-ACKs. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers. The carrier used to transmit the second signaling is indicated by the first signaling.

As a sub-embodiment 1 of Embodiment 1, the base station N1 sends the second high-layer signaling in step S12, and the UE U2 receives the second high-layer signaling in step S22. Wherein, the second high-level signaling indicates L1 in-band resource indexes, and the L1 in-band resource indexes correspond to L1 carrier bandwidths respectively, and the resource occupied by the physical layer control channel on the first carrier is determined by a given in-band The resource index indicates that the given in-band resource index is one of the L1 in-band resource indexes, and the carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is an integer. If the L1 is greater than 1, the sizes of any two carrier bandwidths in the L1 carrier bandwidths are different.

As a sub-embodiment 2 of Embodiment 1, the L candidate carriers are a subset of the K2 carriers.

As sub-embodiment 3 of embodiment 1, one HARQ-ACK is used to indicate whether a transport block is decoded correctly.

As a sub-embodiment 4 of Embodiment 1, the K1 carriers are a subset of the K2 carriers.

As a sub-embodiment 5 of Embodiment 1, the in-band resource index is a PUCCH resource index.

As a sub-embodiment 6 of Embodiment 1, the K1 CSI groups include at least two CSI groups, and the numbers of CSI included in the two CSI groups are different.

As a sub-embodiment 7 of Embodiment 1, the K2 HARQ-ACK groups include at least two HARQ-ACK groups, and the numbers of HARQ-ACKs included in the two HARQ-ACK groups are different.

Example 2

Embodiment 2 illustrates a schematic diagram of dynamic switching of a physical layer control channel on multiple carriers, as shown in FIG. 2 . In FIG. 2 , the thick line box indicates the time-frequency resource occupied by the physical layer control channel.

The L candidate carriers in the present invention are shown as carriers {#1, #2, . . . , #L} in FIG. 2 .

As shown in Fig. 2, the physical layer control channel in the present invention is dynamically configured by the base station on carriers {#1, #2, ..., #L}.

As sub-embodiment 1 of embodiment 2, the physical layer control channel is PUCCH.

As a sub-embodiment 2 of Embodiment 2, if the physical layer control channel occupies time-frequency resources on the unlicensed spectrum, the UE can send an uplink signal on the physical layer control channel without LBT operation.

Example 3

Embodiment 3 illustrates the schematic diagrams of the first moment and the second moment, as shown in Fig. 3 . In FIG. 3 , the squares with bold lines indicate the time-frequency resources occupied by the uplink bursts, and the squares with oblique lines indicate the time-frequency resources occupied by the downlink bursts.

In Embodiment 3, the first signaling is transmitted on the first carrier and the time interval between the first moment and the second moment is smaller than a specific threshold, and the UE can send the second signaling without performing LBT. The first moment is the end moment of the downlink burst corresponding to the first signaling, and the second moment is the start moment of the uplink burst corresponding to the second signaling.

As a sub-embodiment 1 of Embodiment 3, the first signaling is a signature sequence, and the signature sequence includes at least one of {Zadoff-Chu sequence, pseudo-random sequence}. As an embodiment, the generation parameters of the feature sequence include cell identifiers. As an embodiment, the cell identifier is PCI (Physical Cell Identification, physical cell identity).

As a sub-embodiment 2 of Embodiment 3, the deadline of the time-domain resource occupied by the first signaling is the first moment.

As a sub-embodiment 3 of Embodiment 3, the start time of the time-domain resource occupied by the second signaling is the second time.

Example 4

Embodiment 4 illustrates a schematic diagram of carrier bandwidth-specific in-band resource index, as shown in FIG. 4 . In FIG. 4 , the slash marks the PUCCH region (Region) identified by the first in-band resource index, and the backslash marks the PUCCH region identified by the second in-band resource index.

In Embodiment 4, the L1 in-band resource indexes in the present invention include at least a first in-band resource index and a second in-band resource index. Wherein, the first in-band resource index corresponds to the carrier bandwidth I, the second in-band resource index corresponds to the carrier bandwidth II, and the carrier bandwidth I is greater than the carrier bandwidth II. The L candidate carriers in the present invention include at least two carriers, and the bandwidths of the two carriers are carrier bandwidth I and carrier bandwidth II respectively.

The advantage of Embodiment 4 is that the PUCCH can be dynamically configured on multiple carriers with different bandwidths.

As a sub-embodiment 1 of Embodiment 4, the carrier with the carrier bandwidth II is deployed in the licensed spectrum.

Example 5

Embodiment 5 illustrates a structural block diagram of a processing device in a UE, as shown in FIG. 5 . In FIG. 5 , the UE processing apparatus 200 is composed of a first module 201 , a second module 202 and a third module 203 .

The first module 201 is configured to receive first high-layer signaling, and the first high-layer signaling indicates L candidate carriers; the second module 202 is configured to receive the first signaling. The first signaling includes the index of the first carrier, or the first signaling is transmitted on the first carrier; the third module 203 is configured to send the second signaling on the first carrier, and the carrier used to transmit the second signaling is determined by A first signaling indication.

In Embodiment 5, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers, the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ -ACK. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers. The L is a positive integer greater than 1. The first high-layer signaling is RRC signaling.

As a sub-embodiment 1 of Embodiment 5, the second module 202 is further configured to assume that the second signaling can be sent directly without being intercepted. Wherein, the first carrier is deployed in an unlicensed frequency spectrum.

As a sub-embodiment 2 of Embodiment 5, the first module 201 is also used to receive second high-level signaling, and the second high-level signaling indicates L1 in-band resource indices, and the L1 in-band resource indices correspond to L1 carriers respectively bandwidth. Wherein, the resource occupied by the physical layer control channel on the first carrier is indicated by a given in-band resource index, and the given in-band resource index is one of the L1 in-band resource indexes, and the given in-band resource index is one of the L1 in-band resource indexes, and the given The carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is 1, and the carrier bandwidths of the L candidate carriers are equal. The second high layer signaling is RRC signaling.

As a sub-embodiment 3 of Embodiment 5, the index of the first carrier is an index of the first carrier in the L candidate carriers.

As a sub-embodiment 4 of Embodiment 5, the index of the first carrier is a serving cell identity of the first carrier, and the index of the first carrier is a non-negative integer not greater than 31.

Example 6

Embodiment 6 illustrates a structural block diagram of a processing device in a base station, as shown in FIG. 6 . In FIG. 6 , the base station processing device 300 is composed of a first module 301 , a second module 302 and a third module 303 .

The first module 301 is configured to send first high-level signaling, and the first high-layer signaling indicates L candidate carriers; the second module 302 is configured to send the first signaling. The first signaling includes an index of the first carrier, or the first signaling is transmitted on the first carrier; the third module 303 is configured to receive the second signaling on the first carrier, and the carrier used to transmit the second signaling is determined by A first signaling indication.

In Embodiment 6, the first signaling is physical layer signaling, and the second signaling includes at least one of {scheduling request, K1 CSI groups, K2 HARQ-ACK groups}, and the K1 CSI groups are respectively for K1 carriers, the CSI group includes a positive integer number of CSIs, the K2 HARQ-ACK groups are respectively used to indicate whether the downlink data on the K2 carriers is received correctly, and the HARQ-ACK group includes a positive integer number of HARQ -ACK. The second signaling is transmitted on the physical layer control channel. The K1 and the K2 are respectively positive integers. The index of the first carrier is an integer. The L candidate carriers include at least one carrier deployed on an unlicensed frequency spectrum. The first carrier is one of the L candidate carriers. The L is a positive integer greater than 1.

As a sub-embodiment 1 of Embodiment 6, the second module 302 is further configured to assume that the UE directly sends the second signaling without interception. Wherein, the first carrier is deployed in an unlicensed frequency spectrum.

As a sub-embodiment 2 of Embodiment 6, the first module 301 is further configured to send a second high-level signaling, and the second high-level signaling indicates L1 in-band resource indexes, and the L1 in-band resource indexes correspond to L1 carriers respectively bandwidth. Wherein, the resource occupied by the physical layer control channel on the first carrier is indicated by a given in-band resource index, and the given in-band resource index is one of the L1 in-band resource indexes, and the given in-band resource index is one of the L1 in-band resource indexes, and the given The carrier bandwidth corresponding to the given in-band resource index is equal to the carrier bandwidth of the first carrier. The L1 is an integer. If the L1 is greater than 1, the sizes of any two carrier bandwidths in the L1 carrier bandwidths are different.

As sub-embodiment 3 of embodiment 6, the first high-layer signaling is RRC dedicated signaling.

As sub-embodiment 4 of embodiment 6, the second high-level signaling is RRC common signaling.

As a sub-embodiment 5 of Embodiment 6, the first signaling includes an index of the first carrier, and the index of the first carrier is an index of the first carrier in the L candidate carriers. The first signaling is sent on the second carrier, and the second carrier is configured by high-level signaling.

As a sub-embodiment 6 of Embodiment 6, the first signaling includes an index of the first carrier, and the index of the first carrier is an index of the first carrier in the L candidate carriers. The first signaling is sent on the second carrier, and the second carrier is deployed on the licensed frequency spectrum.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific combination of software and hardware. The UE in the present invention includes but not limited to wireless communication devices such as mobile phones, tablet computers, notebooks, and network cards. The base station or system equipment in the present invention includes, but is not limited to, wireless communication equipment such as a macrocell base station, a microcell base station, a home base station, and a relay base station.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (13)

1. a kind of method in UE for supporting to be communicated in unlicensed spectrum, wherein, it is including as follows Step：

- step A. receives the first high-level signaling, and the first high-level signaling indicates L candidate carrier

- step B. receives the first signaling.First signaling includes the index of first carrier, or first Signaling is transmitted on first carrier.

- step C. sends the second signaling on first carrier, for transmit the second signaling carrier wave by First signaling is indicated.

Wherein, the first signaling is physical layer signaling, and the second signaling includes { dispatch request, K1 CSI At least one of group, K2 HARQ-ACK group }, the K1 CSI components safety pin is to K1 Carrier wave, the CSI groups include positive integer CSI, and the K2 HARQ-ACK groups are used respectively In indicating whether the downlink data on K2 carrier wave is correctly received, the HARQ-ACK groups include Positive integer HARQ-ACK.Second signaling is transmitted on physical layer control channel.The K1 and institute It is respectively positive integer to state K2.The index of the first carrier is integer.The L candidate carrier Include that at least one is deployed in the carrier wave in unlicensed spectrum.First carrier is the L candidate One in carrier wave.

2. method according to claim 1, it is characterised in that the first signaling includes first The index of the carrier wave and index of the first carrier is first carrier in the L candidate carrier Index.

3. method according to claim 1, it is characterised in that the step B also includes Following steps：

- step B1. detects the first signaling in the L candidate carrier.

Wherein, the first signaling is transmitted on first carrier.

4. method according to claim 1, it is characterised in that the step B also includes Following steps：

- step B2. assumes that the second signaling can be sent directly between without intercepting.

Wherein, first carrier is deployed in unlicensed spectrum.

5. method according to claim 1, it is characterised in that the step A also includes Following steps：

- step A1. receives the second high-level signaling, and the second high-level signaling indicates L1 with interior resource rope Draw, the L1 corresponds to L1 carrier bandwidths respectively with interior resource index.

Wherein, the shared resource on first carrier of the physical layer control channel is by given band Resource index is indicated, it is described it is given be the L1 with interior resource index with interior resource index One, the given carrier bandwidths with carrier bandwidths and first carrier corresponding to interior resource index are Equal.The L1 is integer.If the L1 is more than 1, in the L1 carrier bandwidths Any two carrier bandwidths it is of different sizes.

6. the method according to claim Isosorbide-5-Nitrae, it is characterised in that the first signaling is first Transmitted on carrier wave and the time interval between the first moment and the second moment is less than specific threshold.Its In, the first moment was the cut-off time of the downlink burst corresponding to the first signaling, and the second moment was The initial time of the uplink burst corresponding to two signalings.

7. a kind of method in base station for supporting to be communicated in unlicensed spectrum, wherein, including such as Lower step：

- step A. sends the first high-level signaling, and the first high-level signaling indicates L candidate carrier

- step B. sends the first signaling.First signaling includes the index of first carrier, or first Signaling is transmitted on first carrier.

- step C. receives the second signaling on first carrier, for transmit the second signaling carrier wave by First signaling is indicated.

Wherein, the first signaling is physical layer signaling, and the second signaling includes { dispatch request, K1 CSI At least one of group, K2 HARQ-ACK group }, the K1 CSI components safety pin is to K1 Carrier wave, the CSI groups include positive integer CSI, and the K2 HARQ-ACK groups are used respectively In indicating whether the downlink data on K2 carrier wave is correctly received, the HARQ-ACK groups include Positive integer HARQ-ACK.Second signaling is transmitted on physical layer control channel.The K1 and institute It is respectively positive integer to state K2.The index of the first carrier is integer.The L candidate carrier Include that at least one is deployed in the carrier wave in unlicensed spectrum.First carrier is the L candidate One in carrier wave.

8. method according to claim 7, it is characterised in that the first signaling includes first The index of the carrier wave and index of the first carrier is first carrier in the L candidate carrier Index.

9. method according to claim 7, it is characterised in that the step B also includes Following steps：

Base station described in-step B2. assumes that UE directly transmits the second signaling without intercepting.

Wherein, first carrier is deployed in unlicensed spectrum.

10. method according to claim 7, it is characterised in that the step A also includes Following steps：

- step A1. sends the second high-level signaling, and the second high-level signaling indicates L1 with interior resource rope Draw, the L1 corresponds to L1 carrier bandwidths respectively with interior resource index.

Wherein, the shared resource on first carrier of the physical layer control channel is by given band Resource index is indicated, it is described it is given be the L1 with interior resource index with interior resource index One, the given carrier bandwidths with carrier bandwidths and first carrier corresponding to interior resource index are Equal.The L1 is integer.If the L1 is more than 1, in the L1 carrier bandwidths Any two carrier bandwidths it is of different sizes.

11. according to claim 7, the method described in 9, it is characterised in that the first signaling is Transmitted on one carrier wave and the time interval between the first moment and the second moment is less than specific threshold.Its In, the first moment was the cut-off time of the downlink burst corresponding to the first signaling, and the second moment was The initial time of the uplink burst corresponding to two signalings.

12. a kind of user equipmenies, it is characterised in that the equipment includes：

First module：For receiving the first high-level signaling, the first high-level signaling indicates L candidate to carry Ripple

Second module：For receiving the first signaling.First signaling includes the index of first carrier, or The signaling of person first is transmitted on first carrier.

3rd module：For sending the second signaling on first carrier, for transmitting the second signaling Carrier wave is indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes { dispatch request, K1 CSI At least one of group, K2 HARQ-ACK group }, the K1 CSI components safety pin is to K1 Carrier wave, the CSI groups include positive integer CSI, and the K2 HARQ-ACK groups are used respectively In indicating whether the downlink data on K2 carrier wave is correctly received, the HARQ-ACK groups include Positive integer HARQ-ACK.Second signaling is transmitted on physical layer control channel.The K1 and institute It is respectively positive integer to state K2.The index of the first carrier is integer.The L candidate carrier Include that at least one is deployed in the carrier wave in unlicensed spectrum.First carrier is the L candidate One in carrier wave.

13. a kind of base station equipments, it is characterised in that the equipment includes：

First module：For sending the first high-level signaling, the first high-level signaling indicates L candidate to carry Ripple

Second module：For sending the first signaling.First signaling includes the index of first carrier, or The signaling of person first is transmitted on first carrier.

3rd module：For receiving the second signaling on first carrier, for transmitting the second signaling Carrier wave is indicated by the first signaling.

Wherein, the first signaling is physical layer signaling, and the second signaling includes { dispatch request, K1 CSI At least one of group, K2 HARQ-ACK group }, the K1 CSI components safety pin is to K1 Carrier wave, the CSI groups include positive integer CSI, and the K2 HARQ-ACK groups are used respectively In indicating whether the downlink data on K2 carrier wave is correctly received, the HARQ-ACK groups include Positive integer HARQ-ACK.Second signaling is transmitted on physical layer control channel.The K1 and institute It is respectively positive integer to state K2.The index of the first carrier is integer.The L candidate carrier Include that at least one is deployed in the carrier wave in unlicensed spectrum.First carrier is the L candidate One in carrier wave.