[0001]
This application claims 2 February 2016 filed Chinese Patent Application No. 201610074262.1, entitled "apparatus and method for detecting a channel, a user equipment and a base station," the priority of Chinese Patent Application, the entire content of which is incorporated by reference in this application.
FIELD
[0002]
Embodiment relates generally to the field of wireless communications of the present invention, particularly relates to scheduling and channel carrier detect unlicensed band radio communication system, and more particularly, to an apparatus and method for a wireless communication system, the spectrum management apparatus, channel detection apparatus and method, and the channel detecting means comprising a user equipment and a base station.
Background technique
[0003]
With the evolution of wireless networks, carrying more and more of service, thus requiring additional spectrum resources to support a large number of data transmission, such as spectrum resources can be time, frequency, bandwidth, maximum allowable transmit power and other parameters to represent . Limited spectrum resources have been allocated to fixed operators and services, the newly available spectrum is very scarce or expensive. In this case, the concept of dynamic spectrum use, that is dynamic but did not use those underutilized spectrum resources have been allocated to certain systems or services, these spectrum resources for the system and its dynamic use words belonging to unlicensed band. The wireless communication system using an unlicensed band when the first determining whether the frequency is available. Since the communication system in the communication systems of different operators and different communication protocols have an equal right to use the unlicensed band, so how fair and effective use of the unlicensed band transmission resources industry is already a serious problem.
[0004]
SUMMARY
[0005]
A brief overview of the present invention hereinafter in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical part of the invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form, as a prelude to the more detailed description that is discussed later.
[0006]
According to one aspect of the present disclosure, there is provided an apparatus for a wireless communication system, comprising at least one processing circuit, the processing circuit is configured to: for at least a set of carriers on the unlicensed band, generating for the user equipment for detecting whether the channel is idle at least a set of channels detected parameters, wherein said at least one set of carriers is obtained by grouping the non-least a portion of the carrier on the licensed band; the carrier information packets condition generation instruction carrier; and generates an uplink scheduling grant for at least one group of carriers.
[0007]
According to another aspect of the present disclosure, there is provided an apparatus for a wireless communication system, comprising at least one processing circuit, the processing circuit is configured to: receiving from the base station to a carrier packet of information and unlicensed band according to the non- band uplink scheduling grant authorization to the group channel is determined to be the carrier detection channel; and from the base station using the received channel parameter detection channel carrier detect the determined group of carriers.
[0008]
According to another aspect of the present disclosure, there is provided a spectrum management apparatus, comprising: at least one processing circuit is configured to the unlicensed band carrier grouping; and a transmitting unit, configured to be associated with packet carriers carrier information packet to the base station.
[0009]
According to another aspect of the present disclosure, there is provided a method for a wireless communication system, comprising: at least a set of carriers for the unlicensed band, generating for the user equipment for at least a set of channel detection parameter detecting whether the channel is idle wherein at least one group of carriers is formed by at least part of the unlicensed band carrier grouping obtained; generating a packet indicating the status of the carrier information carrier packet; and the uplink scheduling grant generated for at least one group of carriers.
[0010]
According to another aspect of the present disclosure, there is provided a method for a wireless communication system, comprising: determining a channel to be received from the base station according to the information carrier packet unlicensed band and the uplink scheduling grant on the unlicensed band detected carrier group; and using the received channel from the base station to detect the channel parameters of the carrier group in the determined carrier detect.
[0011]
According to another aspect of the present disclosure, there is provided apparatus for performing channel detection channel detection on a plurality of unlicensed band carriers, comprising at least one processing circuit, wherein the plurality of carriers including a first carrier and a second carrier, the the processing circuitry is configured to: for a first carrier channel detecting whether the channel is idle; and when during a first carrier channel detection detects the channel is occupied, triggered channel detector for a channel of the second carrier if idle.
[0012]
According to another aspect of the present application also provides a method for performing channel detection channel detection on a plurality of unlicensed band carriers, wherein a plurality of carriers including a first carrier and a second carrier, the method comprising: a first a carrier channel is idle channel is detected; and when the carrier during a first channel detection channel is occupied is detected, the trigger detection as to whether the second carrier channel is idle channel.
[0013]
According to another aspect of the present application also provides a user equipment comprising said channel detecting means, and said channel of a base station comprises detecting means.
[0014]
According to another aspect of the present disclosure, there is provided a user equipment, including channel detection on the multiple carriers of the unlicensed band channel detecting means, the channel detecting means includes at least one processing circuit, wherein said plurality of carriers a plurality of carriers are divided into groups, each group comprising at least one first carrier and at least one carrier a second carrier, the processing circuitry is configured to: for each carrier in the first carrier group if a channel is detected idle channel; and when the carrier during a first channel detection channel is occupied is detected in each carrier group, the set of trigger detection for whether the second carrier channel idle channel.
[0015]
Other aspects according to the present invention there is also provided a computer program product and computer program code for the above-described method for a wireless communication system and a channel for implementing the detection method and recorded thereon for realizing the above-described method for a wireless communication system computer channel detecting method and a computer program storage medium readable code.
[0016]
In an embodiment of the present application, by the unlicensed band carrier grouping and generates an uplink scheduling grant for each carrier group, can improve resource use efficiency in the unlicensed band. Further, by detecting the channel of the plurality of cascaded carriers can reduce the computational complexity.
[0017]
Detailed description of the preferred embodiments of the present invention in conjunction with the following drawings, the above and other advantages of the present invention will become more apparent.
BRIEF DESCRIPTION
[0018]
To further illustrate the above and other advantages and features of the present invention, the following drawings of specific embodiments of the present invention will be further described in detail in conjunction. The drawings together with the detailed description are included in the present specification and a part of this specification is formed. Elements having the same function and structure are denoted with the same reference numerals. It should be understood that a typical example of the present invention that these drawings depict only, and should not be considered as limiting the scope of the present invention. In the drawings:
[0019]
Figure 1 shows a block diagram of an apparatus for a wireless communication system according to an embodiment of the present disclosure is based;
[0020]
FIG 2 is a block diagram showing the structure of another example of the processing circuit in Figure 1;
[0021]
FIG 3 is a schematic diagram showing an example of a class of energy detection;
[0022]
FIG 4 shows an example of signaling grouping information carrier energy detection and configuration parameters;
[0023]
FIG 5 is a block diagram showing the structure of another example of the processing circuit in Figure 1;
[0024]
FIG. 6 shows a block diagram according to a channel detecting unit of the present embodiment of the disclosure;
[0025]
7 an example of the operation of the channel detection unit of Figure 1;
[0026]
Figure 8 shows a block diagram for a wireless communication apparatus according to one embodiment of the present disclosure is based;
[0027]
Figure 9 shows a schematic view of an example in a case where the transmission is received for the uplink scheduling two carrier groups mandated;
[0028]
FIG 10 shows a block diagram of another example of a processing circuit of Figure 8;
[0029]
Figure 11 shows a block diagram of a detecting unit according to a channel of the embodiment of the present disclosure;
[0030]
An example of the operation of FIG. 12 of the channel detection means;
[0031]
Figure 13 shows a block diagram of an embodiment of the spectrum management apparatus according to the embodiment of the present application;
[0032]
14 illustrates a block diagram of an embodiment channel detection apparatus according to the embodiment of the present application;
[0033]
FIG 15 shows a flowchart of a method for wireless communication according to one embodiment of the present application;
[0034]
FIG 16 shows a flowchart of a method for wireless communication according to one embodiment of the present application;
[0035]
FIG 17 shows a flowchart of the channel detecting method of an embodiment of the present application;
[0036]
FIG. 18 shows an example of information flow between the base station and the user equipment;
[0037]
19 shows another example of information flow between the base station and the user equipment;
[0038]
FIG 20 shows another example of information flow between the base station and the user equipment;
[0039]
FIG 21 is a block diagram of a first example of a schematic configuration of an eNB may be applied is shown in the art of the present disclosure;
[0040]
FIG 22 is a schematic block diagram of a second exemplary configuration of the eNB art shown may be applied to the present disclosure;
[0041]
FIG 23 is a block diagram illustrating an example of a schematic configuration of a smart phone art shows the present disclosure may be applied;
[0042]
FIG 24 is a schematic block diagram illustrating the configuration of the car navigation apparatus shown art may be applied to the present disclosure; and
[0043]
FIG 25 is a block diagram of an exemplary configuration of a personal computer according to the general method of Example of the present invention and / or devices and / or systems may be implemented.
Detailed ways
[0044]
The exemplary embodiment of the present invention will be described below in conjunction with the accompanying drawings. For clarity and conciseness, in the specification are not all features of an actual implementation. However, it should be understood that many decisions must be made to the specific embodiments of the development of any such actual embodiment of the process in order to achieve the developer's specific goals, such as compliance with those restrictions related systems and services, and these restrictions may be subject to change with different embodiments. In addition, it should be understood that, although the development work can be very complex and time-consuming, but the benefit of this disclosure to those skilled in the, this development is only a routine task.
[0045]
Here, also be noted that, in order to avoid unnecessarily obscuring the details of the present invention, the drawings only shows a solution according to the present invention closely related to the device structure and / or processing steps, omitted Further details of the present invention has little relationship.
[0046]

[0047]
Figure 1 shows a block diagram of an apparatus 100 for a wireless communication system according to an embodiment of the present application according to the apparatus 100 includes at least one processing circuit 101, configured to: for at least a group of carriers in the unlicensed band, generating for the user equipment for at least a set of channel detection parameter detecting whether the channel is idle, wherein the at least one group of carriers is formed by at least a portion of the carrier on the unlicensed band grouping obtained; carrier packet status generation instruction carriers packet information; and an uplink scheduling grant generated for at least one group of carriers. Apparatus 100 may be located, for example, a wireless communication network management system, such as the base station side.
[0048]
In the present application, the channel is considered, and the corresponding carrier, i.e. a carrier corresponding to a channel, referred to as the carrier detect channel detection. When the carrier is not occupied, that the carrier empty and the corresponding channel is idle. In the following description, for the carrier and channel usage is not intentionally differentiate.
[0049]
Further, FIG. 1 also shows an example of processing module circuit 101, shown in Figure 1, the processing circuit 101 includes a detection channel parameter generating unit 1001, grouping information generating unit 1002 and an uplink scheduling grant generator 1003. It should be understood that these functional blocks may each be implemented by a processing circuit, may be implemented by a common processing circuit, or implemented as part of a processing circuit, or each of the functional blocks may be implemented by a plurality of processing circuits. In other words, implementation of the functional modules non-limiting. Wherein the processing circuit 101 may, for example, having a data processing capability of a central processing unit (CPU), a microprocessor, an integrated circuit module. The structure and function of apparatus 100 is described in detail with reference to the following FIG.
[0050]
In the LTE communication system, when the unlicensed band communication user equipment to be used, must first obtain an uplink scheduling grant from the base station, and performs channel detection to determine scheduled channel is idle after receiving the uplink scheduling grant, only in the case where the channel is idle user equipment may use uplink transmission resources scheduled for data transmission. However, the case of scheduled carriers has occupied the process is likely to exist in the channel detection, while there may be other idle carrier not scheduled. In order to improve the efficiency of resource use unlicensed band, it is desirable to improve the probability of the carrier can be scheduled for uplink transmission.
[0051]
It should be understood, although this technique is described for the LTE communication system, but it also applies to future 5G even more advanced wireless communication systems.
[0052]
In the present application, the base station may transmit to a plurality of user equipment uplink scheduling grant to enable the user equipment to use an uplink data transmission for a plurality of carriers (i.e., carrier aggregation on the unlicensed band). This improves the quality and capacity of communication unlicensed band for data transmission of a user equipment.
[0053]
On the other hand, in the present embodiment, at least a portion of the unlicensed band carrier grouping, so as to obtain at least a group of carriers, and performs scheduling for the uplink carriers instead of a single carrier group, which can be scheduled carriers can be improved by the probability that the uplink transmission. Wherein the number of carrier groups, for example, the user device itself, or the number of transmission capacity to be used for both the uplink carrier transmission determined. Specifically, when the user equipment is to use N carriers for uplink transmission, can obtain N subcarrier groups, each carrier group includes, for example three carriers, wherein each carrier the number of carriers in the group may e.g. unlicensed continuous quantity of available carriers on the frequency band set.
[0054]
As one example, the processing circuit 101 may also be configured to be the unlicensed band carrier grouping. Accordingly, as shown in Figure 2, the processing circuit 101 may further include a carrier grouping unit 1004 configured to group the unlicensed band carriers. As one example, the processing circuit 101 is configured on the carrier unlicensed band carriers into groups.
[0055]
Carrier packet unit 1004 can group all carriers on the unlicensed band, which may be only a part of a carrier group. For example, a total of 32 carriers and in case of need four carrier groups, which can be divided into four groups, each group has eight carriers. Alternatively, considering the complexity of the channel for detecting the letter may be selected in the carrier 32 only 12 carriers and divided into 4 groups.
[0056]
As one example, carrier grouping unit 1004 may be grouped according to at least one of the following: a frequency band for each service each carrier position, the usage of each carrier, the user equipment data amount to be transmitted, the information in the geographic database. Wherein each service of the user equipment, for example, the amount of data to be transmitted can be obtained in accordance with the buffer status report (BSR), from another point of view, the carrier packet unit 1004 can be grouped according to the BSR device to the user-uploaded.
[0057]
For example, when two carriers of a frequency band position proximate or adjacent to the channel characteristics of the two carriers may be more similar, the two carriers can be grouped together. In addition, the usage status of the load carrier reflected on the carrier, for example, lighter load carrier grouping. On the other hand, for example, when the transmission amount of data to the user equipment is larger, lighter load carrier can be grouped. Further, the carrier packet unit 1004 can also be considered by the geographic location information of the reference database and the user equipment including, for example, the carrier may be selected as follows: the carrier is being used for data transmission for user equipment to be currently scheduled uplink user equipment transmission resources far away. Note that, between each set of carrier frequency positions may be continuous or may be discrete.
[0058]
Illustratively, the usage of each carrier can be prepared by the following manner to obtain at least one of: obtaining by the base station measures provided by the relevant spectrum management apparatus, provided by the location database.
[0059]
In one example, the carrier unit 1004 can select the packet by selecting the main carrier allocated to the secondary carrier to the primary carrier group, wherein the user equipment using the primary carrier data transmission priority than the secondary use of the data carrier priority transmission. Of course, the carrier grouping unit 1004 may also be employed in other specific groupings, for example, first select the sub-carriers in a group and then specify the primary carrier and secondary carrier, this is not limitative.
[0060]
Accordingly, the packet generating unit 1002 generates packet information indicating the status of the carrier packet information carrier, e.g., information indicating which carriers are included in each set of carriers. In one example, the carrier information may include grouping information indicating the group and a carrier where the information carrier is a primary carrier or a secondary carrier in the group. For example, if a group of carriers includes a carrier 1, carrier 2, and carrier 3, and carrier as the primary carrier 1, carrier 2, and 3 is a secondary carrier, the carrier packet information may include: a carrier 1- primary carrier; 2- Carrier Carrier 1, the secondary carrier; 3- carrier 1 carrier secondary carrier.
[0061]
Further, the apparatus 100 may not include a carrier grouping unit 1004, i.e., the processing functions of the circuit carrier packet 101 is not performed, is performed by the spectrum related to the device management apparatus 100 of the packet and result of the carrier.
[0062]
For each set of carriers obtained by the packet, the channel parameter generation unit 1001 generates a detection for a user equipment for at least a set of channel detection parameter detecting whether the channel is idle. Here, generating a multi-channel detection parameter sets may provide flexibility to the user equipment appropriately selected. In particular, in the case where all user equipments of a cell to generate the same channel detecting parameters (cell-specific), a plurality of sets of channel detector parameters provides better applicability to different user equipment, enabling the detection of the channel the balance between accuracy and signaling overhead.
[0063]
On the other hand, the detection channel parameter generating unit 1001 may generate at least one detection parameter set of channels (UE-specific) for each user equipment. In this case, the resulting channel parameters can be detected based on the specific conditions of the respective user equipment, thereby improving the detection accuracy of the channel letter.
[0064]
For each set of carriers, wherein each carrier can be set to the same channel as the detection parameter. Is not limited to this, for each set of carriers, the channel parameters for the primary carrier detection may be different from the channel for detecting parameters of the secondary carrier. For example, as compared with the channel detecting a secondary carrier, the channel for the primary carrier to detect more complex channel detection parameter set tighter, it saves the power consumed by the detection channel. Of course, it may be provided different channel sets detection parameters for each carrier in each carrier, thereby further improving the detection accuracy of the channel.
[0065]
Channel detection, i.e. detecting whether the channel is idle or energy detection methods include detection feature. Wherein the energy detection means to detect whether there is a signal transmission channel, wherein the channel occupancy detecting what type of communication device may detect. Wherein said detecting comprises detecting a preamble (preamble detection) and PLMN + PSS / SSS detection, wherein, the preamble detection may be used to detect whether the WiFi signal transmission, PLMN + PSS / SSS detection for detecting whether there is what LTE and LTE signals signal transmission for 4G. Similarly, described herein are equally applicable to the detection channel 5G or more future advanced wireless communication systems. In the following description will be detected energy as an example, it should be understood that the present technique is equally applicable to the detection characteristics.
[0066]
Channel detection by LBT (Listen before talk) mode of realization, LBT whether before or carriers using channel by verification of a clear channel assessment (Clear Channel Assessment, CCA) idle channel manner. For example, the CCA may be utilized channel energy detection result of the determination whether a channel is occupied, in the case of channel detection as energy detection, each group of channel detection parameter comprises at least one of: an energy detection type, the threshold energy detection , the threshold for the energy detection during the energy detection is determined whether a channel is occupied, for example, when the detection result indicates energy accumulated energy higher than the threshold value, that the channel is occupied. The energy detection mode for a particular category to reflect energy detection. For example, energy detection categories include: the energy does not comprise a random backoff (random backoff) detection, including random backoff but contention window (Contention Window Size, CWS) fixed energy detection, including random variable contention window backoff and energy detection.
[0067]
Figure 3 shows a schematic diagram of an energy detection categories, FIG. 3 (a), (B), and (c) show the above three categories, the category (a), the energy detection data directly indicative of the back idle transmission, wherein the categories (b) and (c), the period after the initial detection of, and need for additional random backoff delay (additional defer), wherein a random backoff period, energy is still detected in this period by setting a given random backoff counter (also referred to as a counter) to the retracted, when the energy detection indicates that the channel is occupied when the random backoff count of the counter is interrupted, wherein the random backoff counter is set based on the contention window size. In category (B), the contention window size is fixed, while the category (c), the contention window size is variable. Detecting a detection of energy having to category (b) and (c) as an example, which includes the initial detection of the detection period, a random backoff period, and an additional delay stage.
[0068]
, Energy detection can be configured by setting the operation of the user equipment corresponding energy detection parameters for each set of carriers. For example, in the case of energy detection, for the primary carrier, the category may be set to include the random backoff contention window size and a variable energy detection, and a threshold value is determined to lower; for the secondary carrier may be the energy category does not include the random backoff set to detect, and the threshold value for the determination is high.
[0069]
FIG 4 shows an example of signaling grouping information carrier energy detection and configuration parameters, wherein the carriers 1, 2 and 4 to a group of carriers, the carrier 3, 30 and 31 another set of carriers, wherein the carrier 1 and carrier 3 as the primary carrier, the carrier is a secondary carrier rest, the primary carrier detection using the energy of the class c, the secondary carrier 4 also uses energy detection class c, the remaining categories using a secondary carrier energy detection.
[0070]
Next, an uplink scheduling grant generator 1003 generates an uplink scheduling grant for each carrier group. As one example, the uplink scheduling grant remains for one carrier, i.e. scheduled PUSCH on a carrier, but the uplink scheduling grant is valid for the group of each carrier, in other words, the user equipment receiving the scheduling one carrier uplink after scheduling grant, according to the carrier information packet extended to other carriers where the carrier group of the carriers, i.e., at the same time that the base station for scheduling of these carriers. Or, as another example, the uplink scheduling grant may be changed to include a plurality of carriers for a carrier group scheduling, for example, to add new fields in the conventional uplink scheduling grant and the like.
[0071]
Thus, as long as a carrier channel corresponding to the idle carrier group, the user equipment can use the carrier for data transmission, thereby increasing the efficiency of resource use in the unlicensed band.
[0072]
1 shown in the dashed box in FIG., Device 100 may further comprise: a transceiver unit 102, the user equipment is configured to send the carrier information of the packet channel and then transmitting the parameters detected uplink scheduling grant to the user equipment. Wherein the carrier channel information packet transmitted on the detection parameters licensed band. In the present embodiment, the transceiver unit 102 transmits the uplink scheduling grant licensed band. When there are a plurality of carriers, the transceiver unit 102 transmits a plurality of corresponding uplink scheduling grant, i.e. it may notify the user equipment using a plurality of carriers for uplink data transmission.
[0073]
The apparatus 100 of the present embodiment by the subcarrier group instead of a single carrier uplink scheduling, thereby improving the efficiency of resource use in the unlicensed band. Further, the apparatus 100 to the user equipment uplink transmission resources scheduled on multiple carriers simultaneously, so that the user equipment can transmit uplink data on multiple carriers on the unlicensed band, i.e., to achieve the polymeric carrier unlicensed band.
[0074]

[0075]
In the present embodiment, the transceiver unit 102 transmits the unlicensed band uplink scheduling grant. To this end, the processing circuit 101 is further configured to detect whether the idle on the unlicensed band channel. This is because, only in the case where the channel is idle, the transceiver unit 102 to transmit the uplink scheduling grant. 5, in addition to detecting channel parameters described in the first embodiment of the generating unit 1001, grouping information generating unit 1002 and an uplink scheduling grant generator 1003 addition, the processing circuit 101 further comprises a channel detecting unit 1005, configured to detecting whether a channel on idle unlicensed band. Note that, although not shown in FIG. 5, the processing circuit 101 may further include a carrier grouping unit 1004 described in the first embodiment.
[0076]
Wherein the channel detection parameter generating unit 1001 is further configured to generate a channel detecting unit 1005 for a set of carrier channel detection parameter detection channel is used.
[0077]
Similarly in the first embodiment, the channel energy detection comprises detecting or feature detection. Wherein the energy detection means to detect whether there is a signal transmission channel, wherein the channel occupancy detecting what type of communication device may detect. Wherein said detecting comprises detecting a preamble and a PLMN + PSS / SSS detection, wherein, the preamble detection can be used to detect whether the signal transmission if the WiFi, PLMN + PSS / SSS detection for detecting the signal and which has LTE LTE signal transmission for in 4G. Similarly, described herein are equally applicable to the detection channel 5G or more future advanced wireless communication systems.
[0078]
In the case of channel detection as energy detection, channel detection parameters comprises at least one of: energy detection type, the threshold energy detection, the energy detection threshold is used in the process of energy detection is determined whether a channel is occupied. For example, energy detection categories include: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection. See detailed description about the categories of the detected energy of the first embodiment, it will not be repeated.
[0079]
Generally, as compared with the detection channel parameters generated for the user equipment, the apparatus 100 for detecting the channel is more complicated, more stringent channel detection parameters, which can improve the accuracy of detection of the base station side channel letter. For example, in the case of energy detection may be used include random backoff and the size of the contention window variable energy detection, and a determination threshold is set low.
[0080]
In one example, the channel detecting unit 1005 for each carrier in each set of carriers in the channel are detected, the transceiver unit 102 and the uplink scheduling grant sent on a channel carrier detection indicates that the channel is idle. When there are a plurality of carriers, the transceiver unit 102 respectively in the uplink scheduling grant sent on a plurality of carrier channel is idle.
[0081]
In another example, before the channel detecting unit 1005 may be a carrier on the unlicensed band are grouped on a plurality of carriers (e.g., all carriers) in the unlicensed band channel detection, and selects a channel detection indication idle carrier for The transceiver unit 102 transmits the uplink scheduling grant. In this example, the packet unit 1004 based on the carrier on which to send an uplink scheduling grant to the idle carrier group, for example, the idle carrier as a primary carrier of the carrier group.
[0082]
Wherein the channel detection unit 1005 performing the above-described detection channels, each carrier may have channel detection, in other words, the channel of each carrier is detected in parallel across a predetermined channel detection period. The plurality of predetermined channel carrier detection period having the same deadline. In the present embodiment, for example, deadline downlink time slot arrives.
[0083]
In one example, in order to reduce computational complexity, reduce the processing load, the channel may have a structure detection unit 1005 shown in FIG. 6. In FIG. 6, the channel detecting unit 1005 comprises: a detection unit 501, configured to the carrier channel detecting whether the channel is idle; triggering unit 502, configured to channel detection of the first carrier in each set of carriers during detecting a trigger detection unit 501 of the second carrier in the carrier group is different from the first carriers when the channel is occupied is detected to the channel. "First" and "second" it is here merely to distinguish different carriers, do not represent a particular order, for example, the first and second carriers may be randomly selected. "During the first carrier detection channel" indicates a time period after detection of the start of the channel of the first carrier, this time period may be less than or equal to a preset channel detection period.
[0084]
In other words, not the channel detecting unit 1005 of the first and second carriers for simultaneously detecting the channel, but the first and second carriers detected channel cascade. For example, when the detection of the first channel of the carrier, although not complete, but has been judged that the channel is occupied, it starts a detection channel of the second carrier. Illustratively, the detection of the channel at this time the first carrier can continue, for example, may be provided a plurality of detection units 501 respectively perform channel detection of the first and second carriers. In this case, the channel of the second carrier detection duration is shorter than a channel of the first carrier detected the duration, but both have the same cut-off time (in the present embodiment, for example, deadline downlink time slot arrives).
[0085]
Further, as shown in phantom in FIG. 6, the channel detecting unit 1005 may further comprise: a control unit 503, configured to trigger the control unit 502 sequentially trigger each group for all carriers in the carrier, so that only a front forward channel carrier detect indication when one carrier is occupied after the start of detection of a carrier channel, or until the incoming downlink slot traversed all carriers of the set up carrier. Different start time of each group of detection channels each carrier channel, but the channel detection deadline is the same. FIG. 7 shows an example of the operation unit 1005 of the detection channel. Wherein, assuming carrier group comprises three carrier 1-3, the horizontal axis represents a time axis, the start detecting a carrier channel 1, if it is determined at time t2 indicative of the detection channel is a channel carriers occupied at time t1, t2 from or trigger the start timing of the channel to detect the carrier 2, and similarly, if such a channel is occupied is determined during the channel carrier 2 is detected at time t3, from time t3 to start or trigger channel 3 detects the carrier. Detecting a carrier channel 1-3 are continued until the arrival of a downlink slot, the off time if the channel detection result indicates that there is a plurality of free carriers, select a carrier for the data transmission. Manner or may be selected according to a predetermined rule, for example, selected to be randomly selected, as according to the channel quality, load conditions and the like. Conversely, if a carrier is detected during a channel discovery channel is not occupied, then the carrier detect the carrier 2 and the channel 3 will not be executed. Thus, for each set of carriers, considering the signaling overhead, preferably up to only one carrier channel is idle for data transmission.
[0086]
As can be seen, by the above-described embodiment channel detection cascade, it can reduce the computational load caused by the channel detection.
[0087]
After the channel detecting unit 1005 for each set of carrier detection by the carrier channel is found idle, the transceiver unit 102 uses the uplink scheduling grant transmitted idle carrier carrier group corresponding to the user equipment. As described above, the uplink scheduling grant may be for a carrier group of the carrier, but all carriers the carrier group are valid uplink scheduling grant may be scheduled for a carrier group comprising a plurality of uplink carriers scheduling grant.
[0088]
The apparatus 100 of the present embodiment by the subcarrier group instead of a single carrier uplink scheduling, thereby improving the efficiency of resource use in the unlicensed band. Further, the apparatus 100 to the user equipment uplink transmission resources scheduled on multiple carriers simultaneously, so that the user equipment can transmit uplink data on multiple carriers on the unlicensed band, i.e., to achieve the polymeric carrier unlicensed band.
[0089]

[0090]
8 illustrates a block diagram of an embodiment of the present application for a wireless communication device 200, the apparatus 200 includes at least one processing circuit 201, it is configured to: according to the packet received from the base of the carrier of the unlicensed band uplink scheduling information and the authorization of the unlicensed band is determined to be the carrier channel detection channel group; and from the base station using the received channel parameter detection channel carrier detect the determined group of carriers.
[0091]
Apparatus 200 may be located in the user equipment side, for example, a wireless communication system. By way of example, apparatus 200 may be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle type mobile router and a digital camera) or a vehicle-mounted terminal (such as a car navigation device). Apparatus 200 may also be implemented to perform machine to machine (M2M) communication terminals (also referred to as machine type communication (MTC) terminal). Further, the apparatus 200 may be a wireless communication module on each terminal attached to the terminal (such as a wafer, comprising a single integrated circuit module).
[0092]
Further, in FIG. 8 also shows an example functional block processing circuit 201, shown in Figure 8, the processing circuit 201 includes a carrier set determining unit 2001, a channel detecting unit 2002. It should be understood that these functional blocks may each be implemented by a processing circuit, may be implemented by a common processing circuit, or implemented as part of a processing circuit, or each of the functional blocks may be implemented by a plurality of processing circuits. In other words, implementation of the functional modules non-limiting. Wherein the processing circuit 201 may, for example, like a central processing unit (CPU) having a data processing capability, a microprocessor, an integrated circuit module. FIG 8 is described below in detail structure and function of apparatus 200 will be described.
[0093]
When the unlicensed band for data transmission of the user equipment devices located 200 to be used, the user equipment first transmits to the base station to request and receive an uplink scheduling grant from the base station, and then to use the uplink transmission resource unlicensed band according to the uplink scheduling grant. Since there may be other user equipment is using the uplink scheduling grant scheduled carriers, the user device prior to transmitting data requires channel detection, and only to use carrier transmission uplink scheduling grant is scheduling the at channel detector indicates that the channel is idle in the case data. Accordingly, the user equipment also needs to obtain the channel parameters of the base station detected its configuration.
[0094]
Further, in the present embodiment, the user equipment further obtain information from the base carrier packet. As described above, in order to improve resource efficiency, the base station and the carrier into a plurality of groups of uplink scheduling grant generated for each carrier group. Thus, the uplink scheduling grant received by the user device is valid for a carrier group, even if the uplink scheduling grant may contain only indication for a carrier.
[0095]
For example, subcarrier group determination unit 2001 determines the scheduled uplink carrier scheduling grant from the carrier 1, the carrier with the carrier group information carrier 1 is determined according to the same group comprises a carrier 2 and carrier 3. Channel detecting unit 2002 using the channel detection parameters received from the base for the set carrier channel carrier detect 1-3. As long as a carrier any carrier empty 1-3, the user equipment can use the free carrier data transmission.
[0096]
In one example, the user equipment may be received from the base station to the plurality of the uplink scheduling grant, an uplink scheduling grant for each carrier for one active group. As shown, the user equipment receives the uplink scheduling grant 9-2, subcarrier group determination unit 2001 determines based on the carrier information packet scheduled carriers respectively two carrier groups 1-3 and 4-6 carrier, the channel detecting unit 2002 respectively 1-3 and 4-6 carrier channel carrier detect, found in the carrier empty carrier 1 1-3, 4-6 in the carrier 5, the carrier empty. Accordingly, the user equipment using the carrier 1 and carrier for uplink data transmission 5. It should be understood that FIG. 9 is only one example, the number of the user equipment receives the uplink scheduling grant is not limited to two, but may be other numbers.
[0097]
Wherein the channel parameters of each carrier detect a carrier group may be the same or may be different from each other. For example, channel parameters for the detection of the primary carrier and secondary carrier for the channel parameters are different, wherein, in one carrier group, the user equipment using a primary carrier for data transmission priority than the secondary use of the data carrier priority transmission. In addition, for a carrier group, there may be multiple sets of channel detection parameters, the processing circuit 201 may accordingly be configured to select a set of channels detected parameters from at least a set of channels detected parameters in accordance with service priority of the user equipment is for channel testing. Correspondingly, as shown in FIG. 10, the processing circuit 201 may further include a selecting unit 2003 configured to select an appropriate channel detection parameters.
[0098]
Channel detection (i.e. detecting whether the channel is idle) or comprises an energy detection feature detection. Wherein the energy detection means to detect whether there is a signal transmission channel, wherein the channel occupancy detecting what type of communication device may detect. And wherein detecting comprises detecting a preamble PLMN + PSS / SSS detection, wherein, the preamble may be used to detect whether a detection signal transmission WiFi, PLMN + PSS / SSS detection for detecting whether there is an LTE signal and which signal transmission LTE for 4G . Similarly, described herein are equally applicable to the detection channel 5G or more future advanced wireless communication systems. In the following description will be detected energy as an example, it should be understood that the present technique is equally applicable to the detection characteristics.
[0099]
In the case of channel detection as energy detection, energy detection parameters may include at least one of: an energy detection type, the threshold energy detection threshold of the energy is detected for determining the process energy detection of whether a channel is occupied . Energy detection categories include: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection. Energy detection description of the parameters have been set forth in detail in the first embodiment, it will not be repeated.
[0100]
Channel detecting unit 2002 may set the carrier channel of each carrier are detected. A plurality of carriers of the predetermined period detected channel having the same deadline. In the present embodiment, the deadline for example a physical uplink shared channel (PUSCH) sub-frame start boundary.
[0101]
In one example, in order to reduce computational complexity, reduce the processing load, the channel detecting unit 2002 detects the carrier may be cascaded in each carrier group, as shown in FIG. 11, the channel detecting unit 2002 comprises: a detection unit 601, configured to for the carrier channel detecting whether the channel is idle; triggering unit 602, configured during channel detection of the first carrier in each set of carriers detected by the trigger detection unit 601 of the set of carriers when the channel is occupied different from the first carrier the second carrier channel detection. "First" and "second" it is here merely to distinguish different carriers, do not represent a particular order. Wherein the functional unit detecting function detecting unit 601 and the trigger unit 602 of the second embodiment as described in Example 501 and trigger unit 502 is substantially the same. In this example, each channel detecting unit 2002 performs detects concatenated channel for each carrier group, the user equipment will select the channel at the end of its channel detection period detection result indicates that the channel is idle carriers for data transmission. Illustratively, when the trigger of the detection channel of the second carrier, the first carrier of the detection channel can continue. In this case, the channel of the second carrier detection duration is shorter than a channel of the first carrier detected the duration, but both have the same cut-off time (in the present embodiment, for example, deadline PUSCH subframe starting boundary).
[0102]
For example, in a case where the channel is detected as the energy detected by the detection unit 601 may be configured to determine when a threshold value when a predetermined period of time for the energy carrier is detected the accumulated energy value exceeds the energy detection for determining whether the channel is occupied the carrier is occupied. The predetermined time period may be set to, for example, 9 milliseconds or longer.
[0103]
Further, as shown in phantom in FIG. 11, the channel detecting unit 2002 may further comprise: a control unit 603, configured to trigger the control unit 602 sequentially trigger each group for all carriers in the carrier, so that only a front detecting a carrier channel indicator channel when detecting a carrier which is occupied before the start of a carrier, until the physical uplink shared channel PUSCH starts, and all the carriers traversing the carrier group before the start PUSCH. Here, before the start refers to the PUSCH PUSCH subframe before starting boundary. In this example, the channel detecting unit 2002 by performing the carrier channel set to detect all carriers in cascade to the time before the start PUSCH, reducing the amount of calculation required channel detection. In this example, the start time of each group in different channels each channel detected by the carrier, but the deadline channel detection is the same. If there are multiple carriers in the off idle time detection result indicative of the channel, then select one carrier for data transmission, for example in the case of primary carrier selected primary carrier free, or randomly selected by the secondary carriers or other predetermined selection rules. For example, the predetermined rule may be determined according to channel quality and other factors.
[0104]
Further, the control unit 603 may also determine the carrier group of primary carrier and secondary carrier according to the carrier information packet, the control unit 603 as the primary carrier a first carrier, and the trigger unit 602 is detected indicative of a channel occupied primary carrier primary carrier of secondary carriers in turn trigger. In other words, the control unit 603 performs control so that the channel detector is first primary carrier, and the channel detecting secondary carrier in the channel detection indication primary carrier primary carrier is occupied, wherein the channel secondary carrier detection sequence can be determined randomly, may be determined by the control unit in accordance with the position of the band, for example, and the like.
[0105]
As described above, compared to the secondary carrier detection channel, the main channel of the carrier detection may be more complex, channel detection parameter set more stringent. In case that a channel is detected as the detected energy, e.g., energy detection can be contained for the random backoff primary carrier energy detection category, the detected energy for a secondary carriers category does not include random backoff energy detection.
[0106]
Wherein the energy comprises a random backoff detecting comprises detecting an initial stage, the stage and the additional random backoff delay stage 12, an energy detector for indicating the primary carrier is occupied primary carrier comprising one of the following: detecting the energy of the initial stage of detecting indicates that the channel is not idle, random backoff count period of the counter is interrupted, the energy detection in the additional phase delay of the channel is not idle indication. In FIG 12, since the initial detection stage correlation energy detection threshold has been exceeded at t1-t2 accumulated energy, so that the main carriers 1 are occupied, the trigger unit 602 to trigger the secondary carrier energy detector 2 at t2, at t2 -t3 case where the energy accumulated value exceeds the threshold, the carrier 2 is also considered to have been occupied, the trigger unit 602 such that the secondary carrier energy detection trigger 3. Wherein each of the accumulated energy carrier may be a shortest time interval 9 sec, to judge whether the carrier is occupied.
[0107]
As shown in the dashed box 8, apparatus 200 may further comprise: a transceiver unit 202, it is configured for detecting at least one set of channel parameters to be used in the detection channel to receive the user equipment from the base station, carrier packet information and uplink scheduling grant. Wherein the transceiver unit 202 can receive the channel in the licensed band detection parameters, carrier information and uplink scheduling grant packet. Alternatively, the transceiver unit 202 can receive an uplink scheduling grant in the unlicensed band.
[0108]
Carrier packet can carrier group information carrier channel according to the detection apparatus 200 according to this embodiment, thereby improving the probability of detecting an idle channel, improving the efficiency of resource use in the unlicensed band.
[0109]

[0110]
FIG 12 shows a block diagram of the spectrum management apparatus 300 of one embodiment according to the present disclosure, as shown in FIG, 12 spectrum management apparatus 300 includes: at least one processing circuit 301 is configured to the unlicensed band carrier grouping ; and a transmission unit 302, configured to group information carrier and the carrier packet relating to the base station. Wherein the processing circuit 301 may be, for example, a central processing unit having a data processing capability (CPU), a microprocessor, an integrated circuit module.
[0111]
As described above, the operation may be performed by the carrier packet the base station and to be performed by the spectrum management apparatus. In the present embodiment, the spectrum management apparatus 300 performs carrier carrier packet and the packet information to the respective base stations.
[0112]
As one example, the processing circuit 301 may be grouped according to at least one of the following: the position of each service of each carrier frequency band, the usage of each carrier, the user equipment data amount to be transmitted, the information in the geographic database. Wherein usage of each carrier can be saved by the spectrum management apparatus 300, each user equipment traffic amount data may be transmitted to the base station according to the buffer status report (BSR) and reported by the base station apparatus 300 to the spectrum management.
[0113]
For example, when two carriers of a frequency band position proximate or adjacent to the channel characteristics of the two carriers may be more similar, the two carriers can be grouped together. In addition, the usage status of the load carrier reflected on the carrier, for example, lighter load carrier grouping. On the other hand, for example, when the transmission amount of data to the user equipment is larger, lighter load carrier can be grouped. Further, the inner processing circuit 301 may also be considered user equipment location by referring to information in the geographic database, for example, the carrier may be selected as follows: the carrier is being used for data transmission for user equipment to be scheduled uplink transmission of the current far away from the user device resources.
[0114]
In one example, the processing circuit 301 may then select the primary carrier is assigned to the secondary carrier by selecting a group to a primary carrier, wherein a carrier group, the user device using the primary carrier for transmitting data using a higher priority than secondary carriers for data transmission priority. Of course, the processing circuit 301 may also be employed in other specific groupings, for example, first select the sub-carriers in a group and then specify the primary carrier and secondary carrier, this is not limitative.
[0115]
The spectrum management apparatus 300 of the present embodiment by providing the information carrier packet to the base station, thereby reducing the processing load of the base station, and it is not necessary to provide status information to the base station using a carrier, reducing the signaling overhead.
[0116]

[0117]
FIG 14 shows a block diagram of the present disclosure channel detecting apparatus according to an embodiment 400 according to the channel detecting means for performing channel detection on multiple carriers unlicensed band, and 14, the channel detecting means comprising at least one processing circuit 401, wherein a plurality of carriers including a first carrier and a second carrier, the processing circuit 401 is configured: to perform a first channel carrier detect whether the channel is idle; and detected during the detection of the first channel carrier when the channel is occupied, whether or not the trigger detection for the second carrier channel is idle channel.
[0118]
Further, in FIG. 14 also shows an example of the processing circuit function block 401, FIG. 14, the processing circuit 401 includes a detecting unit 4001 and a triggering unit 4002, wherein the detection unit 4001 is used for the carrier channel is idle channel detection, triggering unit 4002 for, when the detecting unit 4001 detects the channel is occupied for the first carrier indicates the channel, the trigger detection unit 4001 for detecting the second carrier channel. It should be understood that these functional blocks may each be implemented by a processing circuit, may be implemented by a common processing circuit, or implemented as part of a processing circuit, or each of the functional blocks may be implemented by a plurality of processing circuits. In other words, implementation of the functional modules non-limiting. Wherein the processing circuit 401 may, for example, like a central processing unit (CPU) having a data processing capability, a microprocessor, an integrated circuit module. Structures and functions will be described in detail with reference to apparatus 400 of FIG.
[0119]
The channel detecting means 400 through channel detector after during a previous carrier channel detector to trigger an instruction channel is occupied by a carrier, may be implemented channel detection cascade, reduces the processing load of channel detection channel. As shown in phantom in FIG. 14, the processing circuit 401 may further include a control unit 4003, a case where the carrier is configured to be detected in the presence of a plurality of control triggering unit 4002 sequentially trigger detector unit channels 4001 pairs each carrier detection, and only the previous channel carrier detect indication when the channel is occupied after the start of detection of a channel carrier, traversing the plurality of carriers or until the time period for detection of the end of the channel. In this case, the former corresponds to a carrier of the first carrier, the second carrier corresponds to a carrier.
[0120]
Here, when the time period for channel detection, for example, a preset channel detection period, in each carrier in parallel, each channel detected, a plurality of carriers of the predetermined channel detection period having the same deadline. Case of channel detector cascade embodiment of the present embodiment, the start time of the channel detection channel of each carrier is different, because the start time of the channel detection channel after a carrier is later than the start time of the channel detection channel before a carrier. However, the deadline channel detection is the same, for the uplink channel is detected, the cut-off time, for example, shared channel physical uplink channel subframe starting boundary for downlink channel is detected, the cut-off time, for example, a downlink slot arrival time.
[0121]
In one example, the plurality of carriers into a plurality of subcarrier groups, detecting means 400 channel carrier for each channel are set to detect the cascade. Specifically, for each carrier group, the control unit 4003 control the triggering unit 4002 sequentially trigger channel detector each carrier detection unit carrier group 4001 in this, and the only one carrier channel detection indication channel is occupied by only starting the previous detecting a carrier channel, until all the carriers traversing the carrier group or a time period for detecting the end of the channel. Thus, for each carrier group, as long as a carrier is detected to instruct the idle channel, the idle channel to use for data transmission, to improve the efficiency of resource use in the unlicensed band. If a plurality of channel idle detection indicating the presence of a carrier in the carrier group, randomly select a carrier or a carrier selected according to a predetermined rule for data transmission. For example, the predetermined rule may be determined according to channel quality and other factors.
[0122]
When a user equipment includes said channel detecting means 400, if the user equipment receives the uplink scheduling grant for a group of a plurality of carriers, the channel detecting means detecting channel 400 may be concatenated for each carrier group. User equipment detects a data carrier transmission using idle channels in each carrier group at the starting boundary PUSCH subframe starts.
[0123]
Further, when the detection unit 4001 detects channel for different carriers can be detected using the same channel parameters, may be detected using different channel parameters, depending on the actual requirements or setting.
[0124]
Channel energy detection comprises detecting or feature detection. Wherein the energy detection means to detect whether there is a signal transmission channel, wherein the channel occupancy detecting what type of communication device may detect. And wherein detecting comprises detecting a preamble PLMN + PSS / SSS detection, wherein, the preamble may be used to detect whether a detection signal transmission WiFi, PLMN + PSS / SSS detection for detecting whether there is an LTE signal and which signal transmission LTE for 4G . Similarly, described herein are equally applicable to the detection channel 5G or more future advanced wireless communication systems. Case mainly energy detection in the following description, it is to be understood that the present technique is equally applicable to the detection characteristics.
[0125]
In the case of channel detection as energy detection, energy detection parameters may include at least one of: an energy detection type, the threshold energy detection threshold of the energy is detected for determining the process energy detection of whether a channel is occupied . Energy detection categories include: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection. Energy detection description of the parameters have been set forth in detail in the first embodiment, it will not be repeated.
[0126]
The detection unit 4001 is configured to determine a corresponding channel when a threshold value of the energy detected by determining whether a channel is occupied when the energy detected a predetermined period of time for the detected carrier the accumulated energy exceeds on the carrier is occupied. Wherein, for example, for different predetermined time periods of different carriers, and / or for a predetermined period of time different in different phases of the same carrier detection. Generally, the predetermined time period set longer, the higher the energy detection accuracy. Setting parameters associated with the energy detect a predetermined period of time.
[0127]
As one example, the energy contained random backoff detecting comprises detecting an initial stage, the stage and the additional random backoff delay phase, containing carrier energy detection during the energy detected indicating the random backoff is occupied comprises one of: energy detection indication in the initial detection phase the channel is not idle, random backoff count period of the counter is interrupted, the energy detection in the additional phase delay of the channel is not idle indication. In particular, referring to FIG accumulated value if it is detected in the initial detection phase at a point of energy shown in FIG. 3 exceeds the threshold value, it is determined that the channel is occupied at this time, the trigger unit 4002 may trigger detection unit next 4001 pairs of a carrier detection. On the other hand, if not detected, the channel is occupied, the channel detector to enter the random backoff stage in which random backoff counter is a contention window size (CWS) is set, when the energy detection indication channel is occupied at the initial detection stage, random backoff count of the counter to be interrupted, then the trigger unit 4002 may trigger the detecting means next detects one carrier 4001 pairs. As it can be seen, in this example, at the initial stage backoff and random phase detector, accumulated energy in the predetermined period of time which may be set different.
[0128]
In another example, each carrier group includes a primary carrier and a secondary carrier, in which a carrier, a primary carrier for transmitting priority data higher than the priority of use of the secondary carrier for data transmission, for each carrier group, the control unit 4003 control the triggering unit 4002 triggers the channel sequentially detected by the detector means 4001 pairs of primary carrier and secondary carrier until all carriers traversing the carrier group or a time period for detecting the end of the channel. That is, the main carrier 400 is first channel detection means for detecting a channel, and only when the detected primary carrier channel indicator channel is occupied only for the secondary channel detection carrier.
[0129]
Detecting an indication for the channel in the channel is occupied primary carrier, and subsequently detecting a channel indication channel for an idle one of the secondary carrier, the control unit 4003 to select the secondary carrier channel is idle for data transmission. Primary carrier and secondary carrier may be used to detect different types of energy. For example, for the primary carrier energy detection category comprises random backoff energy detection of the detected energy for a secondary carriers category does not include random backoff energy detection.
[0130]
Said channel detecting means 400 may be used to detect an uplink channel, may also be used to detect the downlink channel. By cascading the carrier detection, can effectively reduce the processing load of channel detection channel. The channel detecting means 400 may be applied to each device according to the first embodiment to the third embodiment.
[0131]
Further, the present embodiment further provides a user equipment comprising a channel detecting means 400, and a channel of a base station comprises detecting means 400.
[0132]

[0133]
In an embodiment of the process described above, and means for channel detection apparatus in a wireless communication system, apparently it discloses a number of processes or methods. Hereinafter, a summary of these methods is given in some cases will not be repeated in detail already discussed above, it should be noted that, although the disclosed methods and apparatus used in describing the channel detection apparatus in a wireless communication system, these the method of using those components are not necessarily described or necessarily performed by those components. For example, an embodiment of the apparatus for a wireless communication system and a channel detecting means may be partially or fully implemented using hardware and / or firmware, and methods discussed below may be implemented entirely by a computer-executable program, although these methods It can also be hardware and / or firmware devices for wireless communication systems and the channel detection apparatus.
[0134]
FIG 15 shows a flowchart of a method for wireless communication according to one embodiment of the present disclosure, the method comprising: for at least a set of carriers on the unlicensed band, generating for the user equipment for detecting whether the channel is idle at least a set of channel detection parameters (S12), wherein at least one group of carriers is formed by at least a portion of the carrier on the unlicensed band grouping obtained; carrier information packets condition generation instruction carrier (S13); and generating for at least a group of uplink carrier scheduling grant (S16).
[0135]
In step S12, the channel can generate the same detection parameters for each set of carriers each carrier, may generate different channel detection parameters. In one example, each set of carriers including the primary carrier and secondary carrier, wherein the carrier in a set, the user equipment using the primary carrier priority higher than the priority of data transmission using secondary carriers for data transmission. In this case, the detection channel parameters may be different for the primary carrier and secondary channel detection parameters for the carrier. For example, compared to the channel for detecting the secondary carrier, a primary carrier channel detection complex, the detection channel parameter setting strict. In step S13, grouping the generated carrier information may include information indicating a carrier group is located, and the information carrier is a primary carrier or a secondary carrier in the group, so that the user equipment may be determined according to a carrier with its other carrier group.
[0136]
Step S12 may generate at least one set of parameters for each channel detected a user equipment may be generated at least one detection parameter set of channels which the user equipment is commonly used for one cell.
[0137]
Detecting whether the channel is idle may comprise an energy detect, channel detection parameters, for example, include at least one of: an energy detection type, the threshold energy detection, the energy detection threshold is used in the process of energy detection is determined whether a channel is occupied. Energy detection categories may include: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection. Furthermore, the channel is idle detection feature may also be detected, for example, comprises a feature detection and preamble detection PLMN + PSS / SSS.
[0138]
In step S16, the uplink scheduling grant for each set of carriers generated in the group are valid for each carrier.
[0139]
Further, as shown in a dashed box 5, the above-described method may further comprise the step S11: the carrier grouping unlicensed band. For example, in step S11, the following can be grouped according to at least one of: the position of each service band of each carrier, each carrier usage, the user equipment data amount to be transmitted, the information in the geographic database. Wherein, for example, usage of at least one of each carrier obtained in the following manner: the measurement obtained by the base station, spectrum management is provided by the associated apparatus, provided by the relevant geographic database.
[0140]
In step S11 may then be selected by selecting the primary carrier allocated to the primary carrier to the secondary carrier grouping. Of course, the packet is not limited thereto.
[0141]
Further, as shown in the dashed box 15, the above-described method may further include Step S14: detection parameter information channel to the user equipment transmits the packet carrier. This transmission operation is performed on the licensed band. The method further comprises the step S17: sending an uplink scheduling grant to the user equipment. The transmission operation can be performed on a licensed band.
[0142]
In one example, the step S17 may be sent to the user equipment on the uplink scheduling grant unlicensed band. In this case, the method further comprises Step S15: detecting whether the unlicensed band channel is idle. Although not shown in FIG. 15, but before executing step S15, the above-described method may further include a channel detection parameter detection channel is used for each set of carrier generation. In step S15 wherein each group may be carriers of each carrier channel separately detected. In addition, the step S15 may also be performed before step S11, the previous i.e. the carrier on the unlicensed band grouping a plurality of carriers on the unlicensed band such that all carriers for channel detection, and selects a channel detection indication idle in a subsequent step carriers to transmit an uplink scheduling grant.
[0143]
And during the trigger when the first carrier detected by the detector channel to the channel is occupied; for each set of carriers, the carriers in the first carrier group channel detection: In one example, step S15 may also be performed as follows group of carriers is different from the second carrier detection channel of the first carrier. Step S15 may further comprise: for each set of carriers, the carriers of all groups sequentially trigger carriers, such that when the carrier of a channel is detected indicating that the carrier is occupied only before a start of a previous channel carrier detecting, or until the incoming downlink slot traversed all carriers of the set up carrier.
[0144]
By the above method the carrier and packet scheduling for each set of carriers instead of a single carrier, to improve the efficiency of resource use unlicensed band, and scheduling the user equipment may be a plurality of carriers to improve communication quality and capacity.
[0145]
FIG 16 shows a flowchart of a method for wireless communication according to one embodiment of the present disclosure, the method comprising: receiving authorization from the base station according to the information carrier packet unlicensed band and the uplink scheduling unlicensed band determining a channel to be detected in the carrier wave groups (S22); and from the base station using the received channel parameter detection channel detects (S24) the determined carrier group in the carrier.
[0146]
Wherein the channel detection performed in step S24 may be energy detection, channel detection parameters may include at least one of: an energy detection type, the threshold energy detection threshold of the energy detection is used during the energy detection in the determining whether the channel is occupied. Wherein the energy detection categories include, for example: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection.
[0147]
Further, as shown in phantom in FIG. 16, the above-described method may further include Step S21: The base station receives the user equipment from at least one group of channel detector detects channel parameters to be used, the carrier grouping information and uplink scheduling grant. Wherein the channel detection parameters may be received in the licensed band carrier grouping information and uplink scheduling grant. Alternatively, the uplink scheduling grant may be received in the unlicensed band.
[0148]
The method may further include Step S23: selecting a set of channels from at least one group of detection parameter detection channel parameters according to the service priority of the user equipment to perform the detection channel.
[0149]
In step S24 may be set for each of the carriers were each carrier channel detection. A carrier for each group, the first carrier of the carrier group in the detection channel; during the first carrier channel energy detection trigger detected by the detector when the second carrier channel is occupied to: In addition, the step S24 may be performed as follows . Step S24 may further comprise: a carrier for each group, all carriers of the carrier group is triggered sequentially, such that only after detecting a carrier of the channel indicates the forward only one carrier is occupied by a previous start channel carrier detection, until the physical uplink shared channel PUSCH starts, and all the carriers traversing the carrier group before the start PUSCH.
[0150]
Further, in step S24 may also determine the carrier group of primary carrier and secondary carrier according to the carrier information packet, wherein in one carrier group, the user equipment using the primary carrier is higher than the priority of data transmission using the secondary carrier priority for data transmission, wherein the primary carrier as the first carrier, to the secondary carrier sequentially triggered upon detection indication channel primary carrier primary carrier is occupied.
[0151]
As one example, channel energy detector detects, for the detected energy of the primary carrier type is the random backoff energy comprising detecting the detected energy for a secondary carriers category does not include random backoff energy detection. Wherein the energy comprises a random backoff detecting comprises detecting an initial stage, the stage and the additional random backoff delay stage, for detecting the main carrier of the energy carrier is occupied by the primary indication comprises one of the following: an energy detector indicates non-idle channel is detected at the initial stage of the counting stage random backoff counter is interrupted, the energy detection in the additional phase delay of the channel is not idle indication. Channel detection, it is determined that the carrier is occupied when the threshold value for determining whether a channel is occupied for the detected carrier energy exceeds the energy accumulated energy detecting when a predetermined period of time.
[0152]
The method for enabling a user equipment carrier group of the carrier channel information packet is detected based on the carrier, thereby increasing the probability of detecting an idle channel, improving the efficiency of resource use in the unlicensed band.
[0153]
FIG 17 illustrates a method for performing channel detection channel detection on a plurality of unlicensed band carriers of an embodiment of the present disclosure, wherein a plurality of carriers including a first carrier and a second carrier, the method comprising: the first carrier channel detection (S31) whether the channel is idle; and when during a first carrier channel detection detects the channel is occupied, it triggered channel detection (S32) for a channel of the second carrier if idle.
[0154]
The method further comprises a plurality of carriers each carrier are sequentially performs channel detection, and only the front one carrier channel detection indication channel after the start only to be occupied by a carrier channel detection, down through a plurality of carriers or for channel detection of the end of the period.
[0155]
In one example, a plurality of carriers are divided into a plurality of carrier groups, each carrier group includes a primary carrier and secondary carrier, wherein the primary carrier used for data transmission in a carrier group priority over the use of the secondary carrier data transmission priority for each carrier group of a primary carrier and secondary carrier is sequentially performed for each channel detected until all the carriers traversing the carrier group or a time period for detecting the end of the channel.
[0156]
Detecting an indication for the channel in the channel is occupied primary carrier, and subsequently detecting a channel indication channel for an idle one of the secondary carrier when the selected channel is idle secondary carriers for data transmission.
[0157]
Determining the corresponding channel when the channel detection may be energy detected, and when the energy detected a predetermined time period for the detection of carriers accumulated energy value exceeds a threshold energy detection to judge whether the channel is occupied on the carrier is occupancy. Wherein said predetermined period of time for different carriers of different, and / or different from the predetermined period for detecting the different phases of the same carrier.
[0158]
Detecting the correlation energy parameters may include at least one of the following: energy detection category, the detected threshold energy, the energy detection threshold value for determining whether a channel is occupied during the energy detection. Energy detection categories may include: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection. For different carriers, the channel parameters detected may be different or the same. For example, for the primary carrier energy detection category comprises random backoff energy detection of the detected energy for a secondary carriers category does not include random backoff energy detection.
[0159]
In one example, the energy contained random backoff detecting comprises detecting an initial stage, the stage and the additional random backoff delay period, using random backoff comprising the energy detection during the energy detection indication is occupied carrier comprises one of: detecting at the initial stage of energy detection indicates that the channel is not idle, the random backoff count period of the counter is interrupted, the energy detection in the additional phase delay of the channel is not idle indication.
[0160]
The method by cascading carrier detection, can effectively reduce the processing load of channel detection channel.
[0161]
Note that, each of the above methods may be used singly or in combination, the details of the first to fifth embodiments have been described in detail and will not be repeated.
[0162]
For ease of understanding, FIG. 18 and FIG. 19 shows an example of information flow between the base station and the user equipment, wherein the base station (eNB) apparatus 100 includes, for example, a user equipment (UE) device 200 includes, for example. It should be understood that the information flow is not limiting. Note that, although the figure shows the UE used when the left and right sides, but two substantially UE with a UE, eNB and the UE only to distinguish communicate is the licensed band or unlicensed bands.
[0163]
FIG 18 illustrates an exemplary information flow cross-carrier scheduling. Wherein, UE unlicensed band required for data transmission, the UE and transmits the request to the eNB buffer status report (BSR), BSR UE reflects the amount of data to be transmitted or the priority. After the eNB receives BSR, the UE determines that the uplink transmission on the two carriers. Accordingly, the eNB carrier grouping, selecting a carrier e.g. 1-6 divided into two groups {1,2,3} and {4,5,6}. Next, the eNB generates channel carrier for each set of test parameters, such as energy detection parameters, and together with the carrier group information (not shown) to the user equipment. The eNB then generates two uplink (UL) scheduling grant (carrier group are {1,2,3} and {4,5,6} for) to the user equipment. The communication process are performed on the licensed band. After the UE receives the uplink scheduling grant, the detection channel is scheduled carrier groups according to the carrier information and uplink scheduling grant packet. When each carrier group with at least one carrier in both idle, UE for data transmission on the selected idle carrier. The UE detects the channel above the channel can be detected, for example, a cascade method.
[0164]
FIG 19 shows an example of the flow of information from the carrier scheduling. FIG 19 is different from FIG. 18 for each group eNB carrier channel after detecting the carrier transmits a UL scheduling grant and a packet on carrier unlicensed band detected idle channel. Wherein the channel detection eNB also be cascaded channel detection method described above may be employed.
[0165]
Further, FIG. 20 shows another example of the flow of information from the carrier scheduling. FIG 20 differs from FIG. 19 that the eNB detects all carriers and carrier-channel packet based on a result of the detection channel. Specifically, eNB selects N (N is the number of carriers for the UE to eNB scheduling) indicative of an idle channel is detected based on the carrier and the carrier packet, then transmits scheduling grant corresponding UL carrier groups on these carriers. Similarly, eNB band transmission channel parameters for each set of carriers detected by authorization before sending the uplink scheduling grant.
[0166]

[0167]
The techniques of this disclosure can be applied to various products. For example, the spectrum management apparatus 300 may be implemented as any type of server, such as a tower servers, blade servers and rack servers. Spectrum management apparatus 300 may be a control module mounted on the server (such as a wafer, comprising a single integrated circuit module, and a card slot or blade (Blade) inserted server blade).
[0168]
Further, the above-mentioned base station may be implemented as any type of evolved Node B (eNB), such as a macro eNB, and a small eNB. Small eNB may cover less than a macro cell eNB cell, such as a pico eNB, the eNB and the micro family (femto) eNB. Alternatively, the base station may be implemented as any other type of base station, such as base transceiver stations and NodeB (BTS). The base station may include: a body configured to control wireless communication (also referred to as base station apparatus); and one or more remote radio heads disposed at different places of the main body (RRH). Further, various types of user equipment will be described below can be by temporarily or semi-persistent perform work station functions as a base station.
[0169]
[Application Example of the base station on]
[0170]
(First Application Example)
[0171]
FIG 21 is a block diagram of a first example illustrating a schematic configuration of the techniques of this disclosure may be applied to the eNB. eNB 800 includes one or more antennas 810 and a base station apparatus 820. The base station apparatus 820, and each antenna 810 may be connected to each other via a RF cable.
[0172]
Each antenna 810 includes a single or a plurality of antenna elements (such as including a multiple input multiple output (MIMO) antennas in a plurality of antenna elements), and for the base station apparatus 820 transmit and receive wireless signals. As illustrated, eNB 800 20 810 may comprise a plurality of antennas. For example, a plurality of the plurality of antennas 810 may be used in a frequency band compatible with the eNB 800. Although FIG. 21 shows an example in which the eNB 800 includes a plurality of antennas 810, the eNB 800 may also comprise a single antenna 810.
[0173]
The base station apparatus 820 includes a controller 821, a memory 822, a network interface 823 and a wireless communication interface 825.
[0174]
The controller 821 may, for example, CPU or DSP, and operation of the various higher layer 820 of the base station apparatus. For example, the controller 821 generates a data packet according to the data signal by the wireless communication interface 825 in the process, and to transmit the generated packet via the network interface 823. The controller 821 may be tied to the data from the baseband processor to generate a plurality of packet bundle, bundling and transmitting the generated packet. The controller 821 may have a function to execute control logic: the control such as a radio resource control, radio bearer control, mobility management, admission control and scheduling. This control may be incorporated close to the core network node or the eNB performed. Memory 822 includes RAM and ROM, and various types of control programs and data (such as terminal list, the transmission power data and schedule data) executed by the controller 821.
[0175]
The network interface 823 for base station apparatus 820 is connected to a core network communications interface 824. The controller 821 may communicate with the core network node or another eNB via the network interface 823. In this case, eNB 800 and eNB or other core network node may be connected to each other through the logical interface (such as the S1 interface and the X2 interface). The network interface 823 may also be a wired communication interface or a wireless communication interface for the wireless backhaul. If the network interface 823 is a wireless communication interface, compared with the frequency band used by the wireless communication interface 825, network interface 823 can use a higher frequency band for radio communication.
[0176]
The wireless communication interface 825 supports any cellular communication scheme (such as Long Term Evolution (LTE) and LTE- Advanced), via the antenna 810 and provided to a terminal located in the cell eNB 800 of the wireless connection. The wireless communication interface 825 may generally include a processor 826 and an RF circuit such as a baseband (BB) 827. BB processor 826 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs layer (e.g. L1, medium access control (the MAC), Radio Link Control (RLC) and packet data convergence protocol ( the PDCP)) in various types of signal processing. Instead of the controller 821, BB processor 826 may have a part or all of the logic functions. BB processor 826 may be a memory storing a communication control program, or a module configured to execute a program comprising a processor and associated circuitry. Update to the functional changes in BB processor 826. The module may be inserted into the slot of the base station apparatus 820 or card insert. Alternatively, the module may be a chip on a card or blade is mounted. Meanwhile, RF circuitry 827 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 810.
[0177]
21, a wireless communication interface 825 may include a plurality of processors 826 BB. For example, the BB processor 826 may be compatible with a plurality of the eNB 800 uses a plurality of frequency bands. As shown in FIG 21, a wireless communication interface 825 may include a plurality of RF circuits 827. For example, a plurality of RF circuitry 827 may be compatible with a plurality of antenna elements. Although FIG. 21 shows an example in which a plurality of wireless communication interface 825 includes a plurality of BB processor 826 and RF circuits 827 example, the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.
[0178]
eNB shown in FIG. 21 800, a transceiving unit 102 may be described with reference to FIG implemented by a wireless communication interface 825. At least part of the function may be implemented by the controller 821. For example, the controller 821 may perform an uplink scheduling grant for each carrier group by performing the function of processing circuit 101.
[0179]
(Second Application Example)
[0180]
FIG 22 is a schematic block diagram of a second exemplary configuration of the eNB art shown may be applied to the present disclosure. eNB 830 includes one or more antennas 840, the base station apparatus 850 and RRH860. Each RRH 860 and antenna 840 may be connected to each other via an RF cable. RRH 860 and base station apparatus 850 may be connected to each other via high-speed line such as a fiber optic cable.
[0181]
Each antenna 840 includes a single or a plurality of antenna elements (such as including a plurality of antennas in MIMO antenna elements) and for RRH 860 transmit and receive wireless signals. Shown in Figure 22, eNB 830 may comprise a plurality of antennas 840. For example, a plurality of antennas 840 may be compatible with a plurality of frequency bands used by eNB 830. Although FIG. 22 illustrates an example in which eNB 830 comprises a plurality of antennas 840 examples, the eNB 830 may also comprise a single antenna 840.
[0182]
The base station apparatus 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855 and the connection interface 857. Controller 851, the controller 821 is described a network interface 852 and memory 853 described with reference to FIG. 21, the same memory 822 and a network interface 823.
[0183]
The wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE- Advanced), and provided to the wireless communication terminal and the RRH 860 positioned corresponding to the sector via the RRH 860 and the antenna 840. The wireless communication interface 855 may generally include a processor 856, for example, BB. In addition to the BB processor 856 is connected to the RRH RF circuitry 864,860 is connected via an interface 857, the same processor BB BB processor 856 described with reference to FIG 21,826. 22, wireless communication interface 855 may include a plurality of processors 856 BB. For example, the processor 856 may be compatible with a plurality of BB eNB 830 using a plurality of frequency bands. Although FIG. 22 shows a state where a wireless communication interface 855 includes a plurality of exemplary BB processor 856, the wireless communication interface 855 may include a single processor 856 BB.
[0184]
Interface 857 is an interface for connecting the base station apparatus 850 (wireless communication interface 855) connected to the RRH 860. Interface 857 may also be connected to the base station apparatus 850 (wireless communication interface 855) connected to the high-speed line RRH 860 in the communication module.
[0185]
RRH 860 comprises a connection interface 861 and a wireless communication interface 863.
[0186]
An interface 861 for connecting the RRH 860 (wireless communication interface 863) connected to the base station apparatus 850 interface. Interface 861 may also be connected to the high-speed lines in the communication module.
[0187]
The wireless communication interface 863 to transmit and receive wireless signals via the antenna 840. The wireless communication interface 863 may generally comprise, for example, RF circuit 864. RF circuit 864 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 840. 22, wireless communication interface 863 may include a plurality of RF circuits 864. For example, a plurality of RF circuitry 864 may support a plurality of antenna elements. Although FIG. 22 shows a state where a wireless communication interface 863 includes a plurality of exemplary RF circuits 864, the wireless communication interface 863 may comprise a single RF circuit 864.
[0188]
In the eNB 830 illustrated in FIG. 22, the transceiver unit 102 described with reference to FIG 1 may be implemented by a wireless communication interface 855 and / or wireless communication interface 863. At least part of functions may also be realized the controller 851. For example, the controller 851 may perform an uplink scheduling grant for each carrier group by performing the function of processing circuit 101.
[0189]
[Application Example of the user equipment]
[0190]
(First Application Example)
[0191]
FIG 23 is a schematic block diagram of an arrangement 900 illustrating the present disclosure may be applied to smart phone technology. A smart phone 900 includes a processor 901, memory 902, storage device 903, an external connection interface 904, the image pickup device 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switch 915, one or more antennas 916, bus 917, battery 918 and the auxiliary controller 919.
[0192]
The processor 901 may, for example, (SoC), or on-chip CPU, and controls the smartphone application layer 900 and additional layer features. Memory 902 includes RAM and ROM, and stores data and programs executed by the processor 901. Memory device 903 may include a storage medium, such as a semiconductor memory and a hard disk. Interface 904 for external connection to an external device (such as a memory card, and a universal serial bus (USB) devices) connected to the interface 900 of the smart phone.
[0193]
The imaging apparatus 906 includes an image sensor (such as a charge coupled device (CCD) and complementary metal oxide semiconductor (CMOS)), and generates a captured image. Sensor 907 may include a set of sensors, such as a measuring sensor, a gyro sensor, a geomagnetic sensor and an acceleration sensor. 908 microphone input to the smart phone 900 converts the sound into an audio signal. The input device 909 includes, for example, is configured to detect a touch on the screen of the touch sensor device 910, a keypad, a keyboard, buttons or switches displayed, and receives operation input from a user or information. The display device 910 includes a screen (such as a liquid crystal display (LCD) and organic light emitting diode (OLED) display), and displays the output image 900 is a smart phone. 911 converts the audio signal from the output of the 900 smart phone speaker sound.
[0194]
The wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE- Advanced), and performs wireless communication. The wireless communication interface 912 may comprise, for example, generally BB processor 913 and an RF circuit 914. BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, RF circuitry 914 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 916. The wireless communication interface 912 can be integrated for the BB processor 913 and an RF circuit module 914 of one chip. 23, a wireless communication interface 912 may include a plurality of processors 913 BB 914 and a plurality of RF circuits. Although FIG. 23 shows an example in which a plurality of wireless communication interface 912 includes a plurality of BB processor 913 and RF circuit 914 example, the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.
[0195]
Further, in addition to a cellular communication scheme, a wireless communication interface 912 may support additional types of wireless communication scheme, such as a short-distance wireless communication scheme, a near field communication scheme and wireless local area network (LAN) scheme. In this case, the wireless communication interface 912 may include a BB processor 913 for each wireless communication scheme and the RF circuit 914.
[0196]
Each of the circuits comprises a plurality (e.g. a circuit for different wireless communication schemes) in a wireless communication interface 912 switches the connection destination of the antenna 916 between the antenna switch 915.
[0197]
Each antenna 916 includes a single or a plurality of antenna elements (such as including a plurality of antenna elements in MIMO antenna), and a wireless communication interface 912 for transmitting and receiving wireless signals. 23, the smartphone 900 may comprise a plurality of antennas 916. Although FIG. 23 shows an example in which a smart phone 900 includes a plurality of antennas 916, the smartphone 900 may also include a single antenna 916.
[0198]
In addition, the smart phone 900 may include an antenna for each wireless communication scheme 916. In this case, the antenna switch 915 may be omitted from the configuration of the smart phone 900.
[0199]
917 processor bus 901, memory 902, storage device 903, an external connection interface 904, the image pickup device 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, a wireless communication interface 912 and the auxiliary controller 919 to each other connection. Each block of the smart phone 900 over line 918 shown in FIG. 23 to provide the battery power, in FIG feeders are partially shown as a dashed line. Auxiliary controller 919 operates the smartphone 900 is the minimum necessary functions in the sleep mode.
[0200]
Smart phone 900 shown in FIG. 23, referring to FIG. 8 described transceiving unit 201 may be implemented by a wireless communication interface 912. At least part of the function may be implemented by the processor 919 or secondary controller 901. For example, processor 901 or secondary controller 919 may be performed by the processing circuit 201 functions to detect the carrier channel groups instead of individual carriers, thereby improving the efficiency of resource use in the unlicensed band.
[0201]
(Second Application Example)
[0202]
FIG 24 is a schematic block diagram of an exemplary configuration 920 of the car navigation device art shows the present disclosure may be applied. Car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, content player 927, a storage medium interface 928, an input device 929, display device 930, a speaker 931, a wireless a communication interface 933, an antenna switch 936 or more, one or more antennas 937 and a battery 938.
[0203]
The processor 921 may, for example, a CPU or SoC, and controls the car navigation device 920 and additional navigation functions. Memory 922 includes RAM and ROM, and stores data and programs executed by the processor 921.
[0204]
GPS module 924 using a GPS signal received from a GPS satellite to measure the position (such as latitude, longitude, and altitude) of the car navigation device 920. Sensor 925 may include a set of sensors such as a gyro sensor, a geomagnetic sensor and an air pressure sensor. Via a data interface 926 is connected to a terminal (not shown), for example, in-vehicle network 941, and acquires the data (such as vehicle speed data) generated by the vehicle.
[0205]
Content player 927 to reproduce the content (such as CD and DVD) are stored in the storage medium, the storage medium is inserted into the storage medium interface 928. The input device 929 includes, for example, it is configured to detect a touch on the screen of the touch sensor device 930, display button or switch, and receives operation input from a user or information. The display device 930 includes a screen such as an LCD or OLED display, and displays a content image or reproducing the navigation function. Speaker 931 output sound navigation or reproduction of content.
[0206]
The wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE- Advanced), and performs wireless communication. The wireless communication interface 933 may comprise, for example, generally BB processor 934 and an RF circuit 935. BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and a multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, RF circuitry 935 may comprise, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 937. The wireless communication interface 933 may also be integrated for the BB processor 934 and an RF circuit module 935 of one chip. 24, wireless communication interface 933 may include a plurality of processors 934 BB 935 and a plurality of RF circuits. Although FIG. 24 shows a state where a wireless communication interface 933 includes a plurality of BB exemplary processors 934 and 935 of the plurality of RF circuits, the wireless communication interface 933 may include a single BB processor 934 or a single RF circuit 935.
[0207]
Further, in addition to a cellular communication scheme, a wireless communication interface 933 may support additional types of wireless communication scheme, such as a short-distance wireless communication scheme, a near field communication scheme and the wireless LAN scheme. In this case, for each wireless communication scheme, a wireless communication interface 933 may include a processor 934 and an RF circuit BB 935.
[0208]
Each of the plurality of circuits comprises a wireless communication interface 933 (such as a different circuit for a wireless communication scheme) switches the connection destination of the antenna 937 between the antenna switch 936.
[0209]
Each of the antenna 937 includes a single or a plurality of antenna elements (such as including a plurality of antenna elements in MIMO antenna), and a wireless communication interface 933 for transmitting and receiving wireless signals. 24, car navigation device 920 may include multiple antennas 937. Although FIG. 24 shows a state where the car navigation apparatus 920 includes a plurality of exemplary antenna 937, car navigation device 920, but may also comprise a single antenna 937.
[0210]
Further, the car navigation device 920 may include an antenna for each radio communication scheme 937. In this case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.
[0211]
Each of the battery blocks 938 in the car navigation apparatus shown in FIG. 24 via the feed line 920 to provide power feeder in the drawing is partially shown as a dashed line. Cumulative power from the battery 938 provided by the vehicle.
[0212]
In the car navigation apparatus 920 shown in FIG. 24, 202 may be implemented by a wireless communication interface 933 as described with reference to a transceiver unit 8 of FIG. At least part of the function may be implemented by the processor 921. For example, the processor 921 may detect the carrier channel instead of a single carrier group by performing function processing circuit 201, thereby increasing the efficiency of resource use in the unlicensed band.
[0213]
The techniques of this disclosure may also be implemented as a car navigation device 920 includes a vehicle network module 941 and a vehicle 942 in the vehicle system or a plurality of blocks (or vehicle) 940. Vehicle module 942 to generate vehicle data (such as vehicle speed, engine speed, and failure information), and outputs the generated data to the vehicle network 941.
[0214]
Above with reference to specific embodiments describe the basic principles of the invention, however, to be noted that, to those skilled in the art can understand that all or any of the steps or components of the method and apparatus of the present invention may be any computing device ( It includes a processor, a storage medium etc.) or a network computing device, hardware, firmware, software, or a combination thereof to achieve, as one skilled in the art using the basic circuit design in the case of reading the description of the present invention basic programming skills or knowledge will be able to achieve.
[0215]
Further, the present invention further provides a storing instruction codes are machine readable program product. When the instruction code read and executed by a machine, perform the method according to embodiments of the present invention as described above.
[0216]
Accordingly, program product, for bearing the instruction codes are stored in a machine-readable storage medium is also included in the present invention is disclosed. The storage medium includes, but not limited to, floppy diskettes, optical disks, magneto-optical disk, memory card, memory stick and the like.
[0217]
In the case where the present invention is implemented by firmware or software, a program constituting the software is installed to a computer (e.g. a general purpose computer 2500 as shown in FIG. 25) having a dedicated hardware structure or a network from a storage medium, various programs, which is installed in the computer when you can perform a variety of functions.
[0218]
In Figure 25, a central processing unit (CPU) 2501 executes various processing in accordance with a program read only memory (ROM) 2502 or a program stored in the storage section 2503 to a random access memory 2508 is loaded from the (RAM). In the RAM 2503, and data necessary to execute various processes and the like during storage as needed CPU2501. CPU 2501, ROM 2502, and connected to one another via a bus 2504 RAM2503. Input / output interface 2505 is also connected to the bus 2504.
[0219]
The following components are connected to the input / output interface 2505: an input section 2506 (including a keyboard, a mouse, etc.), an output portion 2507 (including a display, such as a cathode ray tube (CRT), liquid crystal display (LCD) and the like, and a speaker, etc.), storage section 2508 (including a hard disk), a communication section 2509 (including a network interface card such as a LAN card, modem, etc.). Via the network communication section 2509 performs a communication process such as the Internet. A drive 2510 is also connected to the input / output interface 2505. A removable magnetic disk 2511 for example, an optical disk, a magneto-optical disk, a semiconductor memory media, etc., is mounted on the drive 2510, so that a computer program read therefrom is installed into the storage section 2508 as required.
[0220]
In the case where the foregoing series of processes by software, such as the Internet or a storage medium such as the removable medium 2511 from a network installation program constituting the software.
[0221]
Those skilled in the art will appreciate, this storage medium is not limited as shown in FIG. 25 where a program is stored, distributed separately from the device to provide a program to the user removable medium 2511. Examples of the removable medium 2511 include a magnetic disk (including a floppy disk (registered trademark)), CD (compact disc read-only memory that contains (CD-ROM) and digital versatile disc (DVD)), magneto-optical disk (including a Mini Disk (MD) (registered trademark)), and a semiconductor memory. Alternatively, the storage medium may be a ROM 2502, a storage section 2508 comprising a hard disk, etc., which the program is recorded and which is distributed to a user equipment together.
[0222]
Also be noted that, in the devices, methods and systems of the present invention, the respective components or steps can be decomposed and / or recombined. These decomposition and / or recombination of the present invention should be considered equivalents. Further, the above-described series of processing steps can naturally be performed chronologically in order of description but need not necessarily be performed chronologically. Some steps may be performed in parallel or independently of one another.
[0223]
Finally, it should be noted that the terms "comprises", "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, article, or apparatus not include only those elements but also includes other elements not explicitly listed, or further includes elements of the process, method, article or device inherent. Further, without more constraints, by the wording "include a ......" defined does not exclude the existence of additional identical elements in the element comprising a process, method, article, or apparatus.
[0224]
While the above embodiments are described in detail in conjunction with the accompanying drawings embodiments of the present invention, it should be understood that the embodiments described above are merely illustrative of the invention, but not limit the present invention. Those skilled in the art, various modifications and changes may be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention is defined only by the claims and the equivalents of the appended.

WE CLAIM

[Claim 1]Channel detecting means for performing channel detection on a plurality of unlicensed band carriers, comprising at least one processing circuit, wherein said carrier comprises a plurality of first and second carriers, the processing circuitry is configured to: for the first carrier channel detecting whether the channel is idle; and during the time of the first carrier detected by the channel detection channel is occupied, for detecting the trigger channel of the channel of the second carrier is idle.
[Claim 2]
The channel detection apparatus according to claim 1, wherein the processing circuit is further configured to each of said plurality of carriers in a carrier channel sequentially detected, and only the previous channel carrier detect indication channel is occupied after the start when detecting a carrier channel, traversing the plurality of carriers or until the time period for detection of the end of the channel.
[Claim 3]
The channel detection apparatus according to claim 2, wherein, in a case where the uplink channel of the channel detection means for detecting the period of time the channel end of a physical uplink shared channel in sub-frame start boundary.
[Claim 4]
The apparatus according to claim 1, wherein the plurality of carriers into a plurality of carrier groups, each carrier group includes a primary carrier and secondary carrier, wherein said primary carrier for data transmission in a carrier group a higher priority than the secondary carrier using for data transmission priority, the processing circuitry is configured for each carrier of the set of primary carrier and the secondary carrier of each channel is detected sequentially until traversal All carriers or time period for detection of the carrier channel set is ended.
[Claim 5]
When the apparatus according to claim 4, wherein the processing circuitry is configured to detect the channel is occupied for the channel indicating the primary carrier, and subsequently detecting a channel indication channel for an idle one of said secondary carrier, selected the secondary carrier channel is idle for data transmission.
[Claim 6]
The channel detection apparatus according to claim 1, wherein the channel is detected as energy detection, and the processing circuit is configured in a predetermined time period when the energy value for the detected carrier energy detection of the accumulated exceeds the determining the corresponding channel is occupied when the energy detection threshold value for determining whether a channel is occupied on the carrier.
[Claim 7]
The channel detection apparatus according to claim 6, wherein, for the different carriers of different predetermined time period, different and / or the predetermined period of time for detecting different phases of the same carrier.
[Claim 8]
Channel detection apparatus according to claim 5, wherein the energy detection comprises at least one parameter related to the following: energy detection category, energy detection threshold, the threshold for the energy detected in the energy detection the process determines whether the channel is occupied.
[Claim 9]
The apparatus according to claim 8, wherein the energy detection comprises categories: random backoff does not include energy detection, including random contention window backoff but fixed energy detection, including random variable contention window backoff and energy detection.
[Claim 10]
Category apparatus as claimed in claim 4, wherein said channel detector detects energy, energy detection for the primary carrier comprising a category random backoff energy detection, for detecting the energy of the secondary carrier is not It comprises detecting energy random backoff.
[Claim 11]
The apparatus according to claim 9, wherein said energy comprises a random backoff detecting comprises detecting an initial stage, the stage and the additional random backoff delay period, using random backoff comprising the energy detection during the energy carrier detect indication is occupied comprising one: Clear channel assessment in the initial stage of detecting indicates that the channel is not idle, the random backoff count period of the counter is interrupted.
[Claim 12]
The apparatus according to claim 1, wherein, for different carriers, a different detection channel parameters.
[Claim 13]
Channel detecting method for performing channel detection on a plurality of unlicensed band carrier, wherein said carrier comprises a plurality of first and second carriers, the method comprising: the first carrier channel is idle channel detection; and during the time of the first carrier detected by the channel detection channel is occupied, whether or not the trigger detection for the second carrier channel is idle channel.
[Claim 14]
A user equipment, comprising 1 to 12 according to any one of the channel detection apparatus according to claim.
[Claim 15]
A base station, comprising 1 to 12 according to any one of the channel detection apparatus according to claim.
[Claim 16]
A user equipment, including channel detection on a plurality of carriers of the unlicensed band channel detecting means, the channel detecting means includes at least one processing circuit, wherein said plurality of carriers is divided into a plurality of subcarrier groups, each carrier group includes a first carrier and a second carrier, the processing circuitry is configured to: for each carrier in said first carrier group performs channel detecting whether the channel is idle; and in each of the first carrier group when the channel is occupied is detected during the channel carrier is detected, the trigger detection channel of the second carrier channel is idle for the group.
[Claim 17]
The user equipment according to claim 16, further comprising a transceiver circuit configured to shared channels in a physical uplink sub-frame group start with each carrier detected idle channel in the beginning of the data carrier transmission boundary.