[0001]The present invention relates to a radio communication method and a wireless communication device, particularly, to a unlicensed uplink (UL grant-free) automatic retransmission transport mechanism apparatus and method.
Background technique
[0002]With the development of communication technologies, the fifth generation (. 5G) mobile communication positioned higher spectral efficiency, faster rate, greater capacity of wireless networks, spectral efficiency compared to the fourth generation (4G) mobile communication needs lift 5 ~ 15 times. For spectral efficiencies of 5 to 15 times the demand, there has been proposed a new multiple access mode, i.e., non-orthogonal multiple access (NOMA). NOMA technology uses non-orthogonal transmission at the transmitting end, the introduction of active interference information, delete technology demodulated correctly by the serial interference at the receiving end. While the complexity of the receiver has improved, but can achieve higher spectrum efficiency. With the increased processing power of the application NOMA in the actual system possible.
[0003]
In addition, the Third Generation Partnership Project (3GPP) has fifth-generation (5G) mobile communications scenarios were planned, including three major directions: Enhanced Mobile Broadband (eMBB), the massive machine-type communication (mMTC) and ultra-reliable low latency (eMTC). Which, eMBB mainly for experience performance improvement of communication between people, mMTC and eMTC for scenarios of things, but mMTC mainly for information exchange between persons and things, eMTC mainly for between things of communication.
[0004]
In addition, for mobile communication 5G, 3GPP also has been studied unlicensed uplink transmission scheme. Unlicensed uplink transmission refers to transmission of an uplink signal to be transmitted immediately after the terminal device is ready to prepare, without the need for sending scheduling request to the base station and receiving an uplink scheduling grant from the base station. Unlicensed uplink transmission has the following advantages: (1) may reduce the uplink scheduling grant and scheduling request signaling overhead related, (2) reduce the transmission delay due to the uplink scheduling grant and scheduling request result.
[0005]
SUMMARY
[0006]
The present invention is directed to an uplink transmission mechanism provides unlicensed retransmissions and ACK / NACK feedback scheme. In particular, the present invention is applied to an uplink scenario mMTC unlicensed transmission.
[0007]
According to one aspect of the present invention, there is provided an electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: configure different uplink transmission resources for the initial transmission and retransmission, respectively; and generating a resource indication correspondence between the initial transmission and retransmission information, the indication information indicating the resource different from the uplink transmission resource.
[0008]
According to another aspect of the present invention, there is provided an electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: determine uplink transmission are used for the initial transmission and retransmission of a plurality of resource groups; and generating a correspondence between the resource group information, the initial transmission packet information indicating the resource of the resource group using the plurality of resource groups and the plurality of retransmission.
[0009]
According to another aspect of the invention there is provided a communication method performed by a network device, comprising: a plurality of resource groups for respectively determining the initial transmission and retransmission of the uplink transmission; generating a resource and the resource group information packet information is transmitted to the terminal device, the correspondence between the initial transmission packet resource information indicating the resource of the plurality of groups using the resource groups and the plurality of retransmission; and according to the uplink transmission resource group used determining the number of times the uplink transmission of the transmission.
[0010]
According to another aspect of the present invention, there is provided an electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: determine for each packet according to the resource information of the initial transmission of an uplink transmission and retransmission a plurality of resource groups; and for transmission of the uplink transmission time, the selected group is determined for the sub-transmission resource for the transmissions.
[0011]
According to another aspect of the invention, there is provided an electronic device for performing wireless communication with a plurality of communication apparatus, comprising processing circuitry, the processing circuitry is configured to: for a plurality of messages from the plurality of communication devices respectively generating a plurality of feedback signals; a plurality of the feedback signal is arranged at a single frequency domain resources to feed back to the plurality of communication devices.
[0012]
According to another aspect of the invention, there is provided an electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: according to the mapping information, a feedback signal from the group including a plurality of feedback signals in the obtaining a feedback signal corresponding to the message sent by the electronic device, wherein the plurality of positions corresponding to the feedback signal is a feedback for the electronic device on a plurality of messages transmitted by the communication device comprises a plurality of said electronic device including a signal, and wherein the mapping between the communication device and a plurality of position feedback signals for the plurality of the plurality of communication devices located in said feedback signal indicative of the information set.
[0013]
According to another aspect of the invention, there is provided an electronic device for performing wireless communication with a plurality of communication apparatus, comprising processing circuitry, the processing circuitry is configured to: for a plurality of messages from the plurality of communication devices respectively generating a plurality of feedback signals; will be included in a downlink control information for the communication device to transmit to the communication device for each communication device a feedback signal.
[0014]
According to another aspect of the present invention there is also provided a computer for realizing the recording program codes and a computer program product, as well as the method of the invention for the storage-readable computer program code implemented in accordance with the method of the present invention. medium.
[0015]
The present invention is directed to an uplink transmission unlicensed scene design each time a transmission resource allocation for uplink transmission and the ACK / NACK feedback scheme. By aspect of the present invention, can be identified in the absence of an uplink grant according to the resource used for uplink transmission times of transmission, and can efficiently transmitting ACK / NACK to the large number of terminal devices.
BRIEF DESCRIPTION
[0016]
Brief description given to a better understanding of the present invention can be incorporated by reference to the following, in which the same or similar reference numerals in the drawings to refer to the same or like parts. Drawings, together with the following detailed description of the present specification comprises a part of this specification and forming, and serve to further illustrate and explain the principles of the embodiments and advantages of the present invention is preferably present invention. In the drawings:
[0017]
1 is a schematic performs packet transmission resources according to the present invention.
[0018]
Figures 2 and 3 illustrate two schemes selected for retransmission resources.
[0019]
FIG 4 shows a signaling interaction process for the embodiment shown in FIG.
[0020]
FIG. 5 shows a signaling interaction process for the embodiment shown in FIG. 3.
[0021]
6A schematically illustrates the use of feedback resource conventional ACK / NACK.
[0022]
6B schematically shows a resource in accordance with ACK / NACK feedback of an exemplary embodiment of the present invention is to be used.
[0023]
Figure 7 illustrates the main signaling interaction ACK / NACK feedback in accordance with another exemplary embodiment of the present invention.
[0024]
8A and 8B illustrate the present invention, explicit mapping and the corresponding group in accordance with a feedback signal.
[0025]
FIG 9 illustrates a signaling interaction process for explicit mapping 8A-8B shown in FIG.
[0026]
FIG. 10 illustrates another signaling interaction for Figures 8A-8B shown explicitly mapped.
[0027]
11A to 11C show the implicit mapping of the present invention and the corresponding group in accordance with a feedback signal.
[0028]
FIG 12 illustrates a signaling interaction implicit mapping shown for FIG. 11A-11C.
[0029]
Figure 13 illustrates another signaling interaction implicit mapping shown for FIG. 11A-11C.
[0030]
FIG 14 schematically shows the relationship between the uplink data packet transmission resources and corresponding feedback signal group transmission resources.
[0031]
Figure 15 shows a schematic block diagram of a base station according to the invention.
[0032]
FIG 16 shows a schematic block diagram of a terminal apparatus according to the invention.
[0033]
FIG 17 shows a schematic block diagram of a smart phone as an example of the terminal device.
[0034]
FIG 18 shows a schematic block diagram of an example base station eNB as a.
[0035]
FIG 19 is a schematic block diagram of a computer hardware configuration.
Detailed ways
[0036]
In mMTC scenario, the terminal device is in the long discontinuous reception (DRX) state, occasionally activates to transmit small amounts of data. However the density of the terminal device, due to the large number of terminal devices present in the system, thus at the same time in the active state is still very large, theoretically up to 10 . 6 th / km 2 . Thus, in the case of an uplink in the art NOMA mMTC unlicensed transmission scenario goal is to use as little overhead and delay to complete a large number of small non-frequent data packets.
[0037]
In conventional retransmission long term evolution (LTE) system, the base station comprises a 2-bit redundancy version (RV) in the uplink scheduling grant (UL grant) sent to the terminal device, the order of the RV is 0,2, 3,1, sequentially correspond to the initial transmission and each terminal device retransmission. However, for an uplink transmission mechanism is unlicensed, since there is no uplink scheduling grant, requiring the design of new programs to the base station can recognize that the received uplink signal is many times the initial transmission or retransmission.
[0038]
For the above problems, the present invention proposes a different configuration of the transmission resources for the respective uplink transmission (including the initial transmission and each retransmission), then the base station determines an uplink transmission according to the transmission frequency and uplink transmission resource used by the identified. Specifically, the base station may transmit resource resources into multiple groups, so that each resource group corresponding to the respective transmissions of uplink transmission, then the transmission time for a terminal device, selecting appropriate resources in resource group to perform uplink transmission, the base station determines the number of transmissions of uplink transmission resource group to be used is detected. The uplink transmission includes a data transmission service and at least one of a control information transmission.
[0039]
In the present invention, the transmission resources may include physical resource and a signature (Signature) resources. Physical resources may include time domain resource, frequency resource, time domain resources (such as time - frequency resource block) frequency domain resource code and spatial domain resources. Signature resources may include a codebook / codeword, sequence, interleaving, and / or mapping pattern, a demodulation reference signal, a preamble, a spatial dimension, the dimension of power and the like.
[0040]
From the considerations for flexibility complexity and time, manner of grouping resources in the frequency domain may be used. In the frequency domain will be mainly described as an example packet resources aspect of the present invention, it should be noted that the present invention is not limited to this example, by grouping the plurality of types of resources can be realized embodiment of the present invention.
[0041]
FIG 1 shows a schematic view of the present invention, the frequency domain resource nonuniform packets. 1, the base station frequency domain resources are divided into f1, f2, f3, f4 four frequency bands (four resource groups), are used for initial transmission of an uplink signal and first to third retransmission. The bandwidth of each frequency band different from each other, i.e. each different amount of resources included in the resource group, it is called a non-uniform packet. First frequency band f1 for the transmission. Preferably, compared to a resource group for retransmission, can be configured to more resources for new transmission resource group. For example, in the present example configuration large bandwidth frequency band f1. Since the first transmission contains all system information and the check bit part, the probability of collision can be reduced by configuring the time of the initial transmission resources for the new transmission more, and the average number of transmissions needed for successful transmission can be reduced. With increasing number of transmissions configured for the reduced amount of resources corresponding to the resource group. As shown in FIG. 1, for the first to third retransmission frequency band f2, f3, f4 bandwidth less than the bandwidth of the frequency band f1, and gradually decreasing.
[0042]
Incidentally, although FIG 1 shows the division of the frequency domain resource is a resource group four, but the number is not limited to four resource group. According to one example of the present invention, the maximum number of retransmissions is assumed that a plurality of terminal devices and services supported by each base station respectively M1, M2, ..., Mn, the base station may determine the resource group number M to be equal to the respective maximum weight pass a maximum number, i.e., M = max {M1, M2, ..., Mn}. Further, while FIG. 1 shows a first-time transmission and retransmission of the first to third, respectively, arranged four different resource groups comprising the amount of resources, but the amount of resources of each resource group may be included in the same. For example, in the case of non-adaptive hybrid automatic retransmission (HARQ), the amount of resources used for initial transmission and retransmission are the same.
[0043]
The base station generates a resource group information after the division of resource groups, and can be a physical broadcast channel (PBCH) or multicast / multicast single frequency network (MBSFN) subframe resource to each terminal device group information is broadcast to the cell, the packet resource information indicating a correspondence relationship between a plurality of transmission resource groups and multiple uplink transmission.
[0044]
In addition, the base station may be configured, for example resource groups according to the network load, the channel quality, and the priority of one or more. For example, the base station may vary the number, the division manner of resource groups based on the resource element groups, each group comprising the amount of resources and the like. For example, the base station may be a terminal device according to different service priority of the terminal device configuration different resource groups. For example, when the network load is small and the channel quality is better, the larger the initial transmission probability of success, it is possible to allocate more resources for the initial transmission resource group, respectively, for each resource group retransmission the amount of resources contained therein can be reduced. In addition, the base station may configure the resource group using the semi-static manner.
[0045]
When a packet is directed to frequency domain resource, frequency hopping may be employed are preferably designed to enhance resistance to interference and fading performance. 1, for the initial transmission and the retransmission of the first to third frequency bands f1-f4 are not sequentially arranged in the frequency domain, but hopping.
[0046]
The terminal device after receiving the resource information packet for each resource group may be determined each time of transmission of the uplink transmission. For the first transmission, the terminal apparatus selects resources in a resource group determined for the initial transmission in order to transmit an uplink signal. For example, the terminal device may randomly select a resource in the resource set for uplink transmission.
[0047]
For selection retransmission resource, the terminal device may randomly select the corresponding transmission resources in the resource groups, or may select a corresponding transmission resources in the resource groups according to certain rules, Figures 2 and 3 illustrate two schemes . In the example shown in FIGS. 2 and 3, it is assumed in the frequency domain packet transmission resources, and assuming four divided resource group R0-R3, which correspond to the initial transmission and first to third retransmission .
[0048]
Referring first to FIG. 2, assume two terminal devices UE1 and UE2 with a selected resource group R0 in time - frequency resource blocks B0 to perform initial transmission. In the case of the initial transmission is not successful, the terminal device in the resource group R1 UE1 randomly selected resource block B1 performs first retransmission, and the terminal equipment UE2 in the resource group R1 is selected randomly to a first resource block B2 retransmissions. Resource blocks B1 and B2 by the terminal UE1 and UE2 for the first retransmission resource group R1 selected at random, although shown in FIG. 2 is a resource group R1 in two different resource blocks, but It may be the same resource block. Similarly, if the first retransmission fails, the terminal UE1 and UE2 will each randomly select a resource in a resource group R2 for retransmission of the second transmission.
[0049]
Some of the available resources in the example shown in FIG. 3, when the transmission fails, the terminal device is not randomly select a resource in a resource group for the next transmission to the retransmission, but includes the corresponding resource group in select the resource for retransmission. 3, still assuming two terminals UE1 and UE2 with a selected resource group R0 in time - frequency resource blocks B0 to perform initial transmission. In the case of the initial transmission is not successful, the terminal device first determines UE1 according to the resource-related information from the base station for the first retransmission resource group R1 of transmission resources available, and to obtain the available resource blocks B1, B2, B3, B4. Then, the terminal device UE1 randomly selects a resource block (e.g. resource block B1) for the first retransmission resource blocks available in B1-B4.
[0050]
Resource-related information may be generated by the base station, and broadcast to the terminal device through PBCH. Resources associated with a resource group information indicates a previous uplink transmission of one or more resources used for the correlation between the previous uplink transmission resource. That is, having a correlation between a signal transmission on a resource is used for this transmission resources to be used, this time using the transmission resources can only choose from a resource associated with a resource used for the transmission of and can not be arbitrarily selected. In the example of FIG. 3, according to the resource blocks of resources associated with the configuration of the base station information, resource group R0 resource blocks B0 resource group R1 in B1-B4 is associated, wherein the resource blocks B1-B4 same position in the frequency domain and comprising a plurality of continuous time-domain positions. Thus, the resource blocks B1-B4 are terminal UE1 for resource available for the first time retransmission.
[0051]
In the example of FIG. 3, since the terminal equipment UE2 when the initial transmission uses the same resource block B0 to the terminal apparatus UE1, and according to the resource blocks B1 resource-related information, resource block B0 and the resource group in R1, B2, B3, B4 is associated, the terminal equipment UE2 also randomly selected from the available resource blocks B1-B4 for the first retransmission resource blocks, for example, a resource block B3.
[0052]
3 also illustrates the use of different resource blocks B0 another resource for initial transmission in the block B0 'terminal equipment UE3 and UE4. UE1 and the UE2 is similar to the terminal device, in a case where the initial transmission is unsuccessful, the terminal equipment UE3 and UE4 are also in each resource group R1, resource blocks B0 'associated with the available resource blocks B1', B2 ', B3', B4 'resource randomly selected for the first retransmission. In the same manner, when the first retransmission fails, each terminal device may according to the resource related information for the second retransmission resource group R2 determines the resources available for the second retransmission, and thus select a resource in the resources available to perform a second retransmission.
[0053]
Further, if the correlation between having a plurality of terminal devices, the initial transmission and retransmission of the plurality of transmission resources for the terminal device may also have relevance. For example, if a plurality of terminal devices having the same service priority, then the terminal may select a plurality of the initial transmission resources to equal opportunity.
[0054]
Random selection scheme of retransmission resource advantage shown in FIG. 2 that signaling overhead is relatively small. However, compared with the embodiment shown in FIG. 2, according to a predetermined rule resource selection scheme shown in FIG. 3 because of the narrow range of resources available to the terminal equipment, the base station blind detection can be reduced to a great extent the complexity.
[0055]
FIG 4 shows a signaling interaction diagram for the embodiment shown in FIG. 4, the terminal apparatus UE and base station gNB conventional random access procedure performed in step S410. Subsequently, the base station determines a plurality of resource groups gNB multiple transmissions for uplink transmission in step S420, the resource and generates packet information indicating a correspondence relationship between a plurality of times with a plurality of transmission resource group. Incidentally, the steps S410 and S420 are performed is not limited to the order shown in the drawings, but may be performed sequentially exchanged. Then, at step S430 the base station gNB generated resource information notification packet (e.g., broadcast) to the terminal apparatus UE. Terminal UE according to the resource information of the received packet to each of the respective sub-groups may be determined resource for uplink transmission of transmission, as shown in step S440. A first transmission for a specific terminal device UE may randomly select a resource group in the determined resource for uplink transmission, as shown in step S450. The base station group gNB uplink transmission resource used by the terminal device UE identified at step S460, the number of transmissions may determine the uplink transmission. GNB and the base station during a communication terminal device of the UE, for example, when multiple retransmissions of the terminal device UE, step S450 and step S460 may be repeatedly performed. Thereafter, as shown in step S470, for example, when the channel quality changes and the like, the base station may reconfigure the gNB resource groups, and generates a resource information update packet. The base station then gNB at step S480 to update the resource group information to the terminal device UE, equipment UE determining an updated set of resources based on the updated resource group information, thereby performing the subsequent communication process, S440-S460 the same as the details of the step, it will not be repeated.
[0056]
FIG. 5 shows a signaling interaction diagram for the embodiment shown in FIG. 5, the terminal apparatus UE and base station gNB conventional random access procedure performed in step S510. Subsequently, the base station determines a plurality of resource groups gNB respective transmissions of uplink transmission resources and generates packet information in step S520, the base station gNB in ​​addition also generates resource-related information. Similar to Figure 4, an execution order of the steps in FIG. 5 S510 and S520 may be exchanged. Then, at step S530 the base station gNB generated resource group information and resource related information to the terminal apparatus UE. Terminal UE may determine resources used for each group in each sub-transmission uplink transmission resources according to the received information packet, and can determine available resources for the next transmission based on the resource-related information, as shown in step S540. A first transmission for a specific terminal device UE may randomly select the available resources in the resource group identified in the specific resources for uplink transmission, as shown in step S550. The base station gNB set of resources for uplink transmission resource used by the terminal device is located by identifying the UE in step S560, the number of transmissions may determine the uplink transmission. GNB and the base station during a communication terminal device of the UE, for example, when multiple retransmissions of the terminal device UE, step S550 and step S560 may be repeatedly performed. Thereafter, in step S570, when changes such as channel quality, or the network load, etc., the base station gNB can reset the resource group information and / or resource-related information, and at step S580 the updated resource group information and / or resources association information to the terminal apparatus UE. That is, in addition to the resource group information, the base station resource-related information may also be semi-statically configured. Then, the terminal UE determines according to the received update information to a new resource group and the newly available resources, so that the subsequent uplink transmission, specific details are the same as steps S540-S560, it is omitted.
[0057]
The following description of the present invention, an acknowledgment / negative acknowledgment (ACK / NACK) feedback scheme. 6A schematically illustrates a conventional resource ACK / NACK feedback signal occupied. In the conventional LTE system, a base station in a physical hybrid ARQ indicator channel (PHICH) ACK / NACK feedback signal for the terminal apparatus on the transmission. As shown in FIG. 6A, PHICH in the time domain occupies only a first downlink subframe or the first three orthogonal frequency-division multiplexing (OFDM) symbols in the frequency domain occupied frequency resources are sparsely distributed. Therefore, for PHICH transmission resources are limited. However, in mMTC scenario, due to the large number of terminal devices, the same amount of time for uplink transmission terminal apparatus is also very large, and correspondingly the base station needs to send a large amount of ACK / NACK feedback to each terminal device. In this case, PHICH transmission resources is difficult to meet the demand a large number of base station ACK / NACK signal.
[0058]
For the above problems, the present invention provides two new ACK / NACK feedback scheme, including via a physical downlink control channel (PDCCH) to feed back the ACK / NACK feedback signaling scheme and to collectively by a single ACK / NACK feedback scheme.
[0059]
As a first embodiment, the base station via the PDCCH, instead of a PHICH, transmits the ACK / NACK feedback signal to the terminal device. Since the transmission PDCCH resources available far more than PHICH, PDCCH can therefore use feedback to solve the problem for the ACK / NACK resources. 6B schematically shows a resource consumption according to such programs. As shown in, FIG. 6B PDCCH resources are allocated to large and no longer retain the PHICH, also assigned to the PHICH resources occupied by the PDCCH. Thus, the base station may have sufficient resources to send a large number of terminal devices for ACK / NACK of the feedback signal. Preferably, the base station may increase a bit transmitted via the PDCCH control information (DCI) for the downlink for each terminal device, and using the bits to indicate a response message sent for the terminal apparatus (ACK or NACK).
[0060]
As the second embodiment, the base station may utilize a single frequency domain resources to multiple ACK / NACK feedback signal is fed back to collectively plurality of terminal devices. Or, the base station can be transmitted through a single feedback signaling to a plurality of terminal devices for a plurality of terminal devices of the plurality of ACK / NACK feedback signal, without the need for each terminal device via a feedback signaling for transmitting ACK / NACK. In particular, such a scheme is suitable for uplink scenario in mMTC NOMA art using unlicensed transmission.
[0061]
Figure 7 shows the main signaling interaction of such programs. As shown in FIG 7, UE transmits a plurality of messages to a plurality of base stations gNB in ​​step S710 the terminal apparatus, the base station generates gNB multiple ACK / NACK feedback signals for the plurality of message in step S720. Then at step S730 the base station gNB mapping information according to a predetermined plurality of the generated ACK / NACK feedback signals are combined as one set, and at step S740 so as to set the feedback signal to the plurality of terminal apparatus UE feeds back the ACK / NACK. As one example of this embodiment, a plurality of terminal devices UE may use the same transmission resources (e.g. time-frequency domain resource) sends a message to the base station gNB. As another example of the present embodiment, the base station may transmit a feedback signal group on the PDCCH common search space (common search space).
[0062]
The length of the ACK / NACK feedback signal groups, i.e., the number of the feedback signal a feedback signal included in the group, it may be fixed. For example, the length may be set a maximum number of the maximum number of terminal equipment and services can be equal to a base station, i.e. the cell can be an access terminal device. On the other hand, the length of the ACK / NACK feedback signal groups may also vary, and may be adjusted by the base station according to the number of the current cell changes the access terminal device. In this case, the length of the ACK / NACK feedback signal groups may be shortened, thereby reducing the complexity of the terminal device on ACK / NACK feedback signal group decoding a certain extent.
[0063]
In the case where a plurality of feedback for a plurality of terminal devices ACK / NACK feedback signal by the feedback signal group, the terminal device needs to be able to determine which of a plurality of feedback signal in the signal set received is included for itself a feedback signal transmitted message. To solve this problem, the present invention proposes two feedback mapping scheme, will be described hereinafter.
[0064]
8A and 8B illustrate a first mapping scheme and a corresponding feedback signal group. In this embodiment, having a correspondence relation between identifier (ID) of the terminal device and ACK / NACK feedback signal for the position of the terminal device in the feedback signal group, which is also referred explicitly mapped. 8A, the terminal UE1 feedback signal corresponding to a first group of bits, a first bit group which means that the feedback signal is ACK / NACK feedback signal for the terminal UE1. Similarly, the terminal equipment UE2 feedback signal corresponding to the second bit group, the terminal device UE3 corresponding to the feedback signal of the third bit group, and the like. According to the map display, it is possible that the feedback signal of each bit group are ACK / NACK feedback signal for which terminal device.
[0065]
ACK / NACK feedback signal group according to the mapping shown in FIG. 8A and FIG. 8B generated. In the example shown in FIG 8B, it is assumed terminal UE1, UE3, UE5 frequency domain resources using the same sending a message to the base station, so the base station according to the mapping shown in Figure 8A, three for the three terminal device ACK / NACK feedback signals in the feedback signal group are placed in their corresponding positions, i.e., they are placed on the first, third and fifth bits. For example, in FIG. "1" may indicate a positive acknowledgment ACK, "0" may represent a negative acknowledgment NACK. Further, assume that the terminal device does not send a message to the base station UE2 and UE4 before, so there is no base station generates an ACK for the terminal equipment UE2 and UE4 / NACK feedback signal. Terminal equipment UE2 and UE4 since the second bit and the message is not transmitted to the base station, even if the group receiving the feedback signal, not to read data at a position corresponding thereto, so that the feedback signal in the base station group may be placed in any data ( "0" or "1"), the upper four bits.
[0066]
For explicit mapping scheme described above, FIG. 9 shows a signaling interaction between the base station and the terminal device. In the example shown in FIG. 9, the feedback signal is assumed that the length of the fixed group, and the maximum number of cells to access in the terminal device is equal.
[0067]
9, at step S910 the base station gNB based on the maximum number of cells that can be accessed to determine the length of the terminal group of a feedback signal, and generates the mapping information, the mapping information indicating ID of each terminal equipment for each terminal and the UE the mapping relationship between the position at which the respective groups in the feedback signal a feedback signal device. Then at step S920 the base station through the length gNB PBCH to the respective terminal apparatus UE in the cell broadcast ACK / NACK feedback signal groups, S930 and transmits the generated mapping information to each terminal device UE in step. Then, when the cell as shown in step S940 some of the same terminal device used by the UE to the base station sends a message transmission resource GNB, GNB station generates in step S950 a plurality of ACK / NACK signals for a plurality of feedback messages received, and in step S960 generates the map information including the plurality of ACK / NACK feedback signal of the feedback signal group. Specifically, the base station gNB mapping information according to the correspondence relationship indicated by the ACK / NACK feedback signal for each terminal device transmits a message of the UE is placed in the position feedback signal group corresponding to the terminal ID of the UE device. Placed for arbitrary data, the base station ID gNB in ​​its position corresponding to the terminal device that the UE does not send messages. Further, if the number of cells in the existing terminal device is not able to access reaches the maximum number, i.e., a feedback signal is less than the length of the group, the base station can not arbitrarily placed gNB terminal position data corresponding group on the feedback signal. Accordingly, the base station may generate a feedback signal gNB group. Then, at step S970 the base station gNB the generated feedback signal to each of the set of transmission terminal apparatus UE in the cell. In step S980, the terminal device previously transmitted message received by the UE in accordance with step S930 and the feedback signal group mapping information received at step S970, to obtain for its own ACK / NACK feedback signal. But not previously sent a message even if the terminal apparatus UE receives the feedback signal group, can not be processed.
[0068]
In particular, when a UE accesses a new cell of the terminal device, the base station gNB therewith after the random access procedure, the terminal device may notify the UE to the length of the feedback signal and the set of ACK / NACK feedback to the terminal device corresponding to the UE a position signal in the feedback signal group. Then, the new access terminal apparatus UE can participate in the process steps S940-S980 of FIG. 9 in. Further, when a terminal apparatus UE leaves the cell, the base station may gNB feedback signal terminal device group assigned to the position corresponding to the UE to leave the terminal device to access the next cell. Incidentally, in the new terminal device access to the cell case, only the base station corresponding to the terminal device is assigned a position feedback signal in the group, without changing the position of the other existing mapping between the terminal device. Also, when there is the case where the terminal equipment from the cell, releasing only the base station corresponding to a location of the terminal device, without affecting the position of the mapping relationship further terminal. In this manner, it is possible to reduce the impact on the existing terminal device maximally, thereby reducing the signaling overhead for reconfiguration.
[0069]
About display mapping scheme described above with reference to FIG. 9 signaling flow in the fixed length group of feedback signals, the signaling interaction will be binding in the case described a variable length set of feedback signal 10 in FIG.
[0070]
10, in step S1010 gNB base station determines the length of the group based on a feedback signal terminal devices currently connected cell number and change of the number of the terminal device, and generates a mapping information. For example, the base station may be gNB feedback current access number of the terminal device plus a certain length setting signal set adjustment value, the adjustment value may be determined based on the number of terminal apparatus trends, future for a certain time period to access a cell in the terminal device reserve position feedback signal group. Generating mapping information indicating a mapping relationship between the ID and the position feedback signal for each respective terminal device is located in the feedback signal group in each terminal device UE. The base station then in step S1020 gNB length to each terminal apparatus UE sets the current feedback signal a broadcast of an access cell, and S1030 UE transmits the mapping information generating step to each terminal device. Note that, although FIG. 10 shows a base station gNB respectively length and mapping information of each terminal device UE notification feedback signal groups, but the base station gNB may be feedback length and mapping signal group in step S1020 and step S1030 in together with the terminal device transmits to the UE via a respective signaling information.
[0071]
When the cell after the step shown in some of the terminal equipment UE transmits a message to the base station, respectively GNB, the base station generates GNB S1040, at step S1050 a plurality of messages for a plurality of received ACK / NACK feedback signal, and at step S1060 the map generating a plurality of information including the ACK / NACK feedback signal of the feedback signal group. Specifically, the base station gNB mapping information according to the correspondence relationship indicated by the ACK / NACK feedback signal for each terminal device transmits a message of the UE is placed in the position feedback signal group corresponding to the terminal ID of the UE device. For the terminal apparatus UE does not send the message, the base station gNB arbitrary data placed in its position corresponding to the ID. Accordingly, the base station may generate a feedback signal gNB group. Then, the base station in step S1070 gNB the generated feedback signal transmitted to each terminal device group the UE currently accesses cell. In step S1080, the terminal device previously transmitted message received by the UE according to the mapping information, step S1030 sets a feedback signal received through the step S1070, to obtain for its own ACK / NACK feedback signal. But not previously sent a message even if the terminal apparatus UE receives the feedback signal group, can not be processed.
[0072]
Then, for example, over time, the number of the terminal equipment UE access a cell may change, and therefore the base station apparatus based on the terminal gNB currently accessed cell number and change of the number of the terminal device to determine a new Group again feedback signal length, and generates a new mapping information, as shown in step S1090. The base station then gNB access to the current cell in step S1100 and S1110 the respective terminal apparatus UE notifies the new length and the new feedback signal group mapping information. Subsequent process steps S1040-S1080 are similar and therefore will not be repeated.
[0073]
In the present example, the base station may be based on the number of current access gNB equipment UE cell periodically arranged and the length of the corresponding mapping information feedback signal group. For example, for reconfiguring period may be determined according to the frequency change of the access terminal apparatus UE. Since the number of the current cell the access equipment UE may be less than the maximum number of terminal apparatus UE in the cell can be accessed, as compared with the example shown in FIG. 9, the length of the group of the feedback signal in this example may be shortened, the terminal equipment can be reduced ACK / NACK feedback signal group decoding complexity.
[0074]
In particular, it has been determined in the base station gNB length set and the feedback signal case where the UE accesses a new cell of the terminal device, after generating the map information described above, since the feedback signal of the determined group that already contains a new UE reserved for the terminal device position, after the base station gNB random access procedure with the terminal equipment UE, to notify the location may be the length of the current feedback signal group and ACK / NACK feedback signal assigned to it. Incidentally, the base station can be allocated to the UE location gNB ACK / NACK feedback signal for the terminal equipment in the current feedback signal group without altering other location mapping relationship existing terminal apparatus, thereby to minimize current Effect of the terminal apparatus has, thereby reducing signaling overhead. Subsequently, the new access terminal apparatus UE can participate in the process steps S1040-S1080 of FIG. 10 in.
[0075]
Has been described above as a first embodiment of explicit feedback mapping mapping scheme, in conjunction with the following Figures 11A-11C will be described a second feedback mapping scheme. In this embodiment, the signature having a mapping relationship between the distribution terminal apparatus (Signature) and ACK / NACK feedback signal for the position of the terminal device in the feedback signal group, which is also referred to as an implicit mapping.
[0076]
11A, the terminal equipment UE1-UE5 are pre-assigned different signatures, for example, the terminal device UE1 assigned signature "000", the terminal equipment UE2 assigned signature "001", and the like. 11B shows a terminal device UE1-UE5 signature and the corresponding relation between the position for the terminal UE1-UE5 ACK / NACK of the feedback signal in the feedback signal group. For example, the terminal device UE1 signature "000" corresponding to the feedback signal to a first group of bits, a first bit group which means that the feedback signal is ACK / NACK feedback signal for the terminal UE1. Similarly, the terminal device UE2 signature "001" corresponding to the feedback signal to the second bit group, the terminal device UE3 signature "010" corresponds to the feedback signal of the third bit group, and the like. The signature of each terminal device and the implicit mapping, the feedback signal can be known in each bit group respectively carry the ACK / NACK feedback signal for which terminal device.
[0077]
ACK / NACK feedback signal group based on the correspondence relationship shown in FIGS. 11A and 11B generated as shown in FIG. 11C. In the example shown in FIG. 11C, assume that a terminal equipment UE1, UE3, UE5 same frequency domain resources using the message transmitted to the base station, so the base station according to a position between the signatures of the three terminal device ACK / NACK feedback signal correspondence, for the terminal equipment UE1, UE3, the three ACK UE5 / NACK feedback signals in the feedback signal group are placed in a position corresponding thereto, i.e., are placed on the first, third and fifth bits. Assumed that the terminal device UE2 and the fourth bit and the second bit place any data (0 or 1) before the base station does not send a message to UE4, thus the feedback signal in the base station group. Thus, in the implicit mapping scheme, not directly correspond to the position of the terminal device and the ACK / NACK feedback signal, but via the terminal device is assigned a signature to be mapped.
[0078]
Below in connection with FIG. 12 signaling interaction implicit mapping scheme between a base station and the terminal device is described. In the example shown in FIG. 12, assuming that the length of the fixed feedback signal group, and the maximum number of cells to access in the terminal device is equal.
[0079]
As shown, the base station gNB in ​​step S1210 based on the maximum number of cells that can be accessed terminal device 12 to determine the length of the feedback signal group, and generates the mapping information, the mapping information indicates that the UE allocated to each terminal device for signature each respective terminal equipment UE ACK / NACK feedback signals corresponding relationship between the position located in the feedback signal group. The base station then gNB length feedback signal group to each cell in the broadcasting terminal apparatus UE through PBCH in the step S1220, and step S1230 is assigned to each UE notifies the terminal device and the mapping information generated signature. When the cell shown in step S1240 as some equipment UE use the same transmission resource sending a message to the base station GNB, GNB station in step S1250 generates a plurality of ACK / NACK signals for a plurality of feedback messages received, and at step S1260 according to the mapping information is generated comprising a plurality of ACK / NACK feedback signal of the feedback signal group. Specifically, the base station gNB mapping information according to the correspondence relationship indicated by the ACK / NACK feedback signal for each terminal device transmits a message of the UE is placed in the feedback signal with the signature group corresponding to the terminal device UE positions. For terminal apparatus UE does not send the message, the base station gNB place any signature data corresponding thereto in position. If the number of cells in the existing terminal device is smaller than the length of the group of the feedback signal, the feedback signal gNB the base station no signature group corresponding to any position data. Accordingly, the base station may generate a feedback signal gNB group. Then, the base station in step S1270 gNB the generated feedback signal to each of the set of transmission terminal apparatus UE in the cell. In step S1280, the terminal device previously transmitted message received by the UE in accordance with step S1230 and the signature group mapping information and the feedback signal received through the step S1270, to obtain for its own ACK / NACK feedback signal. And the terminal device even if not previously transmitted message received feedback signal group, is not subjected to treatment.
[0080]
In particular, when a UE accesses a new cell of the terminal device, the base station gNB signature assigned thereto when the random access procedure, the terminal device and to notify the UE sets the length of the feedback signal and mapping the random access procedure after information, the mapping information indicates that the terminal apparatus UE mapping between the position of the signature for ACK / NACK feedback signal of the terminal apparatus UE. Subsequently, the new access terminal apparatus UE can participate in the process steps S1240-S1280 of FIG. 12 in. Further, when a terminal apparatus UE leaves the cell, the base station may be a feedback signal gNB group signature UE leaves the terminal device corresponding to the future positions are assigned to the terminal device access to the cell. Incidentally, in the new terminal device has access to the terminal equipment from a cell or a cell, the base station configuration and mapping only portions of the changes related to the information terminal device, the terminal device without changing the other related mapping relationships, which can reduce signaling overhead for reconfiguration.
[0081]
On implicit mapping scheme described above with reference to FIG. 12 signaling flow in the fixed length group of feedback signals, the signaling interaction will be binding in the case of variable length will be described in FIG. 13 the feedback signal group.
[0082]
13, in step S1310 gNB base station determines the length of the group based on a feedback signal terminal devices currently connected cell number and change of the number of the terminal device, and generates a mapping information. For example, the base station may be gNB feedback current access number of the terminal device plus a certain length setting signal set adjustment value, the adjustment value may be determined based on the number of terminal apparatus trends, future for a certain time period to access a cell in the terminal device reserve position feedback signal group. The generated mapping information indicating a mapping relationship between the signature and the respective position of the terminal equipment UE for each terminal device of each ACK / NACK feedback signal located in the feedback signal group. The base station then gNB signature in step S1320 to the length of the respective broadcast equipment UE sets the current feedback signal to the access cell, and step S1330 to inform the UE to assign each terminal device and the generated mapping information. Note that, although FIG. 13 shows a base station gNB respectively length and mapping information of each terminal device UE notification feedback signal groups, but the base station gNB may be feedback length and mapping signal group in step S1320 and step S1330 in together with the terminal device transmits to the UE via a respective signaling information.
[0083]
Thereafter, as shown in step, some of the cell terminal UE are transmitted to the base station S1340 gNB message, the base station generates gNB multiple ACK / NACK signals for a plurality of feedback messages received in step S1350, and at step S1360 the map generating a plurality of information including the ACK / NACK feedback signal of the feedback signal group. Specifically, the base station gNB mapping information according to the correspondence relationship indicated by the ACK / NACK feedback signal for each terminal device transmits a message of the UE is placed in the set position feedback signal corresponding to the signature to the terminal apparatus UE. For the terminal apparatus UE does not send the message, the base station gNB place any data thereto at a position corresponding to the signature. Accordingly, the base station may generate a feedback signal gNB group. Then, the base station in step S1370 gNB the generated feedback signal transmitted to each terminal device group the UE currently accesses cell. In step S1380, the terminal device previously transmitted message received by the UE in accordance with step S1330 and the signature group mapping information and the feedback signal received through the step S1370, to obtain for its own ACK / NACK feedback signal. But not previously sent a message even if the terminal apparatus UE receives the feedback signal group, can not be processed.
[0084]
Then, for example, over time, the number of the terminal equipment UE in a cell may change, and therefore the base station apparatus based on the terminal gNB currently accessed cell number and change of the number of terminal devices to determine the length of the new feedback signal group again , and generate a new mapping information, as shown in step S1390. Then the base station to the cell currently accessed gNB at step S1400 and S1410 the respective terminal apparatus UE notifies the new length and the new feedback signal group mapping information. Subsequent process steps S1340-S1380 are similar and therefore will not be repeated.
[0085]
In the present example, the base station may be based on the number of current access gNB equipment UE cell periodically arranged and the length of the corresponding mapping information feedback signal group. Since the number of the current cell the access equipment UE may be less than the maximum number of cells that can be accessed by the terminal device UE, as compared with the example shown in FIG. 12, in this example a length of an ACK / NACK feedback signal group may shortened, thereby reducing the complexity of the terminal device on ACK / NACK feedback signal group decoding.
[0086]
Under particular, it has been determined in the base station gNB length of the feedback signal and the set new cell after the UE accesses the terminal device generates mapping information, the base station assigned gNB signature random access procedure with the terminal equipment (UE) and, after the random access procedure, the length may be notified of the location of the current feedback signal thereto signature set and the corresponding ACK / NACK feedback signal. Incidentally, the base station can be allocated to the UE location gNB ACK / NACK feedback signal for the terminal equipment in the current feedback signal group without altering other location mapping relationship existing terminal apparatus, thereby to minimize current Effect of the terminal apparatus has, thereby reducing signaling overhead. Subsequently, the new access terminal apparatus UE can participate in the process steps S1340-S1380 of FIG. 13 in.
[0087]
In the ACK / NACK feedback mechanism, the same terminal equipment also need to consider the case where the UE has transmitted a plurality of uplink data packets on different transmission resources. In this case, the need to address the following issues: how to determine the correspondence relationship between the plurality of base stations and a plurality of data packets ACK transmitted on different transmission resources for the plurality of data packets / NACK feedback signal group. To solve this problem, the present invention provides: an uplink resource for transmission of each data packet and a transmission having a fixed relationship between a resource for the feedback signal of the packet group, and the relationship may be a fixed base station and a predetermined notified to the terminal device in the random access procedure. Accordingly, the terminal device can be sent to the packet thereto a feedback signal corresponding to the group based on the detection in fixed relation on a corresponding resource, and thus can be obtained ACK / NACK feedback signal for the data packet in a corresponding feedback signal group.
[0088]
14 illustrates an example of a fixed relationship between data packet transmission resources and an uplink feedback signal corresponding set of transmission resources. 14, assume that a certain terminal apparatus using different resources are transmitted first data packets D1, D2 of the second data packet and the third data packet D3. D1 data packet with a predetermined first feedback signal corresponding to a first group of A1 (i.e., a first feedback signal contains the group A1 for ACK / NACK feedback signal D1 is the first data packet) transmission in the resource: the resource in a frequency transmitting a first domain occupies the data packet D1 physical resource block (PRB) the same PRB, transmitting a fourth subframe located after the first data packet D1 subframe in the time domain, which may be 12 per PRB e.g. * 15KHz = 180KHz. . In the same manner, the transmission resources may be defined with its second feedback signal corresponding to the set A2, and the third transmission resources according to a predetermined data packet D3 of the third feedback signal corresponding thereto according to the resource group D2, transmitting a second data packet transmission resource A3.
[0089]
By a predetermined relationship between the uplink data packet transmission resource signal groups and corresponding feedback transmission resource, the terminal device can easily detect the feedback signal to each respective set of data packets corresponding to the transmitted thereto on a corresponding resource. Incidentally, FIG. 14 only shows a specific example of such a fixed relationship, the present invention is not limited thereto, those skilled in the art readily devised in accordance with the actual requirements of the various programs to enable the terminal equipment to identify the respective packet group corresponding to the feedback signal.
[0090]
Below in conjunction with FIGS. 15 and 16 described the functional architecture of a base station and a terminal apparatus according to the invention. Figure 15 shows a schematic block diagram of a base station according to the present invention.
[0091]
15, the base station 1500 includes a processing unit 1510, a storage unit 1520 and a transceiver unit 1530. When required for storage processing unit 1520 memory unit 1510 performs data processing and generated by performing the processing data and the like, and may store the program executed by the processing unit 1510. Transceiver unit 1530 comprises one or more antennas, a terminal device transmits and receive signals from the terminal device to.
[0092]
The processing unit 1510 further comprises a resource set determining unit 1511, the resource-related information generation means 1512, a transmission frequency determining unit 1513, a mapping information generating unit 1514, and a feedback information generating unit 1515.
[0093]
Resource group determining unit 1511 for determining the initial transmission and retransmission of a plurality of uplink data resource groups, with the increase in the number of retransmissions of data, corresponding to a resource group comprises a reduced amount of resources. Resource group determining unit 1511 may be based on time domain resources, frequency resources, time resources, frequency domain, code domain resources, spatial domain resources, etc. to determine a plurality of resource groups, and a plurality of resource groups may be determined by frequency hopping, in order to improve anti-fading and interference. Then, the resource group determining unit 1511 generates packet information resource correspondence relationship between the plurality of transmissions indicating data for group resource, to transmit via the transceiver unit 1530 to the terminal device.
[0094]
Further, when a change in network load or a channel quality occurs, the resource group determining unit 1511 may re-configure the resource group, for example, the amount of resources in the resource group number or each resource included in the group change, and generate an updated resource group information for transmission to Terminal Equipment.
[0095]
Resource-related information generation means 1512 is provided for a primary resource of the uplink data transmission and for associating resources between the first transmission data, and generates the resource-related information to transmit to the terminal device via the transceiver unit 1530. Furthermore, the resource-related information generation means 1512 may be reset according to changes in the association of network load or the channel quality, and generates the resource association information updated.
[0096]
Transmission number determination unit 1513 upon receiving the uplink data from the terminal device, determines the number of transmission of the uplink data transmission the uplink resource set used by the data recognition. In particular, the resource determined by the resource group unit 1511 generates packet information may be stored in the storage unit 1520, a transmission resource number determining unit 1513 may refer to the information packet stored in the storage to determine the number of transmitting uplink data.
[0097]
Mapping information generating unit 1514 generates mapping information to transmit via the transceiver unit 1530 to the terminal device, the mapping information indicates a mapping relationship between the position of the plurality of ACK feedback signals included in the group / NACK feedback signal of which the plurality of terminal devices. Generating mapping information may be stored in the storage unit 1520. Further, according to a change in the cell terminal device, mapping information generating unit 1514 can be reset to the mapping relationship, and generates the mapping information is updated.
[0098]
In one example according to the present invention, the feedback information generating unit 1515 generates ACK / NACK signal for the feedback message from each terminal apparatus. The generated ACK / NACK feedback signals carried by the DCI for the additional terminal device 1 bits. Thus, DCI can be transmitted on the PDCCH generated ACK / NACK feedback signal transmitted to the corresponding terminal device.
[0099]
In another example according to the present invention, the feedback information generating unit 1515 generates a plurality of ACK / NACK feedback signal for the plurality of terminal devices a plurality of messages transmitted on the same resource, and the map information stored in the storage unit 1520 the ACK / NACK signal for each terminal device is placed in the feedback signal with the location of the group corresponding to the terminal device, thereby forming a plurality of containing the ACK / NACK feedback signal of the feedback signal group. The generated feedback signal is transmitted to the plurality of groups to the terminal device via the transceiver unit 1530.
[0100]
FIG 16 shows a schematic block diagram of a terminal apparatus according to the present invention.
[0101]
16, the terminal device 1600 includes a processing unit 1610, a storage unit 1620 and a transceiver unit 1630. When the memory required for storage processing unit 1620 performs processing unit 1610 and the data generated by performing the processing data and the like, and may store the program executed by the processing unit 1610. The transceiver unit includes an antenna 1630 for transmitting signals to a base station and receiving signals from a base station.
[0102]
The processing unit 1610 further comprises a resource set determining unit 1611, selecting unit 1612 resource determination unit 1613 and the feedback signal.
[0103]
Packet terminal device 1600 receives the resource information and / or resource-related information from the base station via the transceiver unit 1630, the received information may be stored in the storage unit 1620. Resource group determining unit 1611 determines an initial transmission and each retransmission resource groups according to the resource information of the received packet.
[0104]
In one example according to the present invention, data for a first transmission resource selector unit 1612 first selects resource group for the transmission times, and then randomly select a resource in the resource group to the selected transmission data.
[0105]
In another example of the present invention, for a data retransmission, the resource selection unit 1612 first selects the set of resources for retransmissions, and according to the resource association information storage unit 1620, and the last transmission resources used to determine the selected set of resources in one or more available resources, then randomly selecting resources for transmitting data at the determined available resources.
[0106]
Further, when the terminal device 1600 sends a message to the base station via the transceiver unit 1630, may receive ACK / NACK feedback signal of the messages generated (including the feedback signal group) and mapping information, the mapping information indicates that includes a terminal device 1600 from the base station and a plurality of terminal devices including the corresponding ACK / NACK feedback signal is mapped in the relationship between the position feedback signal group. Feedback signal group and the mapping information received may be stored in the storage unit 1620.
[0107]
The feedback signal determination unit 1613 according to the mapping information, a feedback signal from the group including a plurality of ACK / NACK feedback signal acquired ACK / NACK feedback message transmitted signal 1600 corresponding to the terminal device 1600 to the position corresponding to the terminal device.
[0108]
The present invention can be applied to various products. For example, the above-described embodiments of the base station or the network device may include any type of evolved Node B (eNB), such as a macro eNB, and a small eNB. Small eNB may be smaller than a macro cell covering the cell eNB, such as eNB pico, micro and home eNB (femto) eNB. Instead, the network side device or the base station may also include 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 terminal devices can also be temporarily or semi-persistent perform the base station functions as a work station.
[0109]
On the other hand, the above-described embodiments of a terminal device or user equipment, for example, may be implemented as a communication terminal device (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / mobile router and dongle type digital camera) or a vehicle-mounted terminal device (such as a car navigation device), it may also be implemented to perform a machine to machine (M2M) communication terminal device, also known as machine type communication (MTC) terminal device. In addition, the terminal device or user equipment may also be a wireless communication module on each terminal attached to the terminal (such as a wafer, comprising a single integrated circuit module).
[0110]
The following implemented in conjunction with a smart phone as an example to describe the terminal apparatus 17 of FIG.
[0111]
FIG 17 shows a block diagram of a schematic configuration of a smart phone. As shown, the smart phone 250 017 includes a processor 2501, memory 2502, storage device 2503, an external connection interface 2504, the image pickup device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, a switch 2515 or more antennas, one or more antennas 2516, bus 2517, a battery 2518 and an auxiliary controller 2519.
[0112]
The processor 2501 may be, for example, (SoC), or on a CPU chip, a smart phone and controls the application layer and the additional layer 2500 function. The memory 2502 includes a RAM and ROM, and stores data and programs executed by the processor 2501. Memory device 2503 may include a storage medium, such as a semiconductor memory and a hard disk. 2504 external connection interface for connecting an external device (such as a memory card, and a universal serial bus (USB) device) 2500 to the smart phone interfaces.
[0113]
Image pickup apparatus 2506 includes an image sensor (such as a charge coupled device (CCD) and complementary metal oxide semiconductor (CMOS)), and generates a captured image. Sensor 2507 may include a set of sensors, such as a measuring sensor, a gyro sensor, a geomagnetic sensor and an acceleration sensor. Microphone input to the smart phone 2508 2500 sound into an audio signal. The input device 2509 comprises, for example, it is configured to detect a touch on the screen of the touch sensor device 2510, a keypad, a keyboard, buttons or switches displayed, and receives operation input from a user or information. The display device 2510 includes a screen (such as a liquid crystal display (LCD) and organic light emitting diode (OLED) display), and displays the output image 2500 is a smart phone. The audio output signal is converted from a smart phone 2500 2511 speaker sound.
[0114]
A wireless communication interface 2512 to support any cellular communications scheme (such as LTE and LTE- Advanced), and performs wireless communication. Wireless communication interface 2512 may generally comprise, for example, a processor 2513 and a radio frequency baseband (BB) (RF) circuit 2514. BB processor 2513 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 2514 may include, for example, mixers, filters and amplifiers, and to transmit and receive wireless signals via the antenna 2516. Wireless communication interface 2512 may be an integrated thereon BB processor 2513 and an RF circuit chip 2514 of a module. As shown in FIG 17, a wireless communication interface 2512 may include a plurality of processors BB plurality of RF circuits 2513 and 2514. However, a wireless communication interface 2512 may also include a single processor BB 2513 or 2514 single RF circuit.
[0115]
Further, in addition to a cellular communication scheme, a wireless communication interface 2512 may also 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, a wireless communication interface 2512 may include a processor 2513 BB for each wireless communication scheme and the RF circuit 2514.

Claims

[Claim 1]An electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: configure different resources for the initial transmission and retransmission of uplink transmission, respectively; and generating a resource indication information, the indication information indicating that the resource said correspondence between the initial transmission and retransmission of the different resources and uplink transmission.
[Claim 2]
An electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: determine, respectively, for the initial transmission and retransmission of a plurality of uplink transmission resource groups; and generating resource information packet, the packet resource correspondence between the initial transmission and retransmission information indicating the plurality of the resource group using the plurality of resource groups.
[Claim 3]
The electronic apparatus according to claim 2, the processing circuit is further configured to: time domain resources, based on frequency domain resources, time resources, frequency domain, code domain resource, a resource spatial domain to determine the plurality of resources group.
[Claim 4]
The electronic apparatus according to claim 3, the processing circuit is further configured to: determine a plurality of resource groups by frequency hopping.
[Claim 5]
The electronic apparatus according to claim 2, the processing circuit is further configured to: configure the network load based on the priority, the channel quality, the service number of said at least one resource group, and each resource included in the group Resources.
[Claim 6]
The electronic apparatus according to claim 2, the processing circuit is further configured: to transmit the uplink initial transmission and retransmission are determined amount of resources comprise the plurality of different resource groups.
[Claim 7]
The electronic apparatus according to claim 2, the processing circuit is further configured to: identify a resource group used for uplink transmission; and determining the number of transmissions of uplink transmission resource according to the identified group.
[Claim 8]
The electronic apparatus according to claim 2, the processing circuit is further configured to: generate a resource-related information, the resource association information indicating a resource group for a previous uplink transmission or a plurality of resources for the resources associated with the transmission of the first uplink.
[Claim 9]
The electronic apparatus according to claim 8, the processing circuit is further configured to: associate at least one of the information provided to the load and the network resource in accordance with the channel quality.
[Claim 10]
A communication method performed by a network device, comprising: determining, respectively, for the initial transmission and retransmission of a plurality of uplink transmission resource groups; generating the resource information and the resource group information packet transmitted to the terminal device, the resource packet information indicating the correspondence relationship between the plurality of initial transmission and retransmission resource group using the plurality of resource groups; and determining the number of transmissions of the uplink transmission according to the uplink transmission resource group used.
[Claim 11]
An electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: determine a plurality of resource sets initial transmission and retransmission, respectively, for uplink transmission according to the resource information packet; for the uplink and a transfer transmission, selecting resources for transmission in the sub-group is determined for the sub-transmission.
[Claim 12]
The electronic device according to claim 11, wherein the processing circuit is further configured to: select a resource for the transmission times randomly resource group for the sub-transmission.
[Claim 13]
The electronic device according to claim 11, wherein the processing circuit is further configured to: according to the resource association information, determining a resource associated with a resource used for uplink transmission on a resource group is used in the transmissions, as the available resources for the sub-transmission, wherein the association information indicates a resource for the previous uplink transmission resource for a group of one or more resources associated with the resource to the previous uplink transmission; and the available resources randomly selecting the sub-resources for the transmission.
[Claim 14]
A method for communicating with a plurality of electronic devices for wireless communication devices, including a processing circuit, the processing circuitry is configured to: for a plurality of messages from the plurality of communication devices, generate a plurality of feedback signals; The the arrangement of said plurality of feedback signals at a single frequency domain resources to feed back to the plurality of communication devices.
[Claim 15]
The electronic apparatus according to claim 14, the processing circuit is further configured to: generate a feedback signal comprising a plurality of sets of the feedback signal and the feedback signal using a plurality of feedback signal to the feedback of the group a plurality of communication devices, wherein the processing circuit is further configured to: for each communication device, a feedback signal according to mapping information arrangement positions in the feedback signal group corresponding to the communication device for the communication device on, wherein the mapping information indicating a correspondence relationship between the position of the device and the feedback signal for each respective communication device is located in said feedback signal the respective communication groups.
[Claim 16]
The electronic apparatus according to claim 15, the processing circuit is further configured to: generate the mapping information, and controls to the map information is notified to the plurality of communication devices.
[Claim 17]
The electronic apparatus according to claim 15, wherein the mapping information indicating a correspondence relationship between the position of each communication device identifier or signature in which the respective feedback signal in the feedback signal group.
[Claim 18]
The electronic apparatus according to claim 15, the feedback signal of said feedback signal number included in the group is fixed.
[Claim 19]
The number of the electronic apparatus according to claim 18, wherein said feedback signal is a feedback signal included in the group can be equal to the maximum number of communication devices in communication with the electronic device.
[Claim 20]
The electronic apparatus according to claim 15, wherein said feedback signal group number included in the feedback signal is varied.
[Claim 21]
The electronic device according to claim 20, the processing circuit is further configured to: according to the number of said communication device being in communication with the electronic apparatus, the number of sets of signals comprises a feedback signal of the feedback arrangement.
[Claim 22]
The electronic device according to claim 20, the processing circuit is further configured to: according to the number of said communication device being in communication with the electronic device, configuring the mapping relationship.
[Claim 23]
The electronic apparatus according to claim 15, wherein the means for transmitting the feedback resource to each communication device of the plurality of communication devices set a signal having a fixed relationship between resources for sending the message.
[Claim 24]
An electronic device for wireless communications, comprising a processing circuit, the processing circuitry is configured to: according to the mapping information acquired from the plurality of feedback signals includes a feedback signal corresponding to the position of the electronic equipment a feedback signal corresponding to the message sent by the electronic device, wherein said plurality of feedback signal is a feedback signal for a plurality of messages transmitted by the communication device comprises a plurality of said electronic device, including, and wherein the mapping information indicates the plurality of correspondence between the communication device and position feedback signals for the plurality of the plurality of communication devices located in said feedback signal group.
[Claim 25]
An electronic device for performing wireless communication with a plurality of communication apparatus, comprising processing circuitry, the processing circuitry is configured to: for a plurality of messages from the plurality of communication devices, generate a plurality of feedback signal; for each communication device comprises a feedback signal in a downlink control information for the communication device to transmit to the communication device.