CN103026773A - Method and apparatus for transmitting data - Google Patents

Method and apparatus for transmitting data Download PDF

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Publication number
CN103026773A
CN103026773A CN201180001367XA CN201180001367A CN103026773A CN 103026773 A CN103026773 A CN 103026773A CN 201180001367X A CN201180001367X A CN 201180001367XA CN 201180001367 A CN201180001367 A CN 201180001367A CN 103026773 A CN103026773 A CN 103026773A
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group
dimension
running time
frequency resource
dimension group
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CN103026773B (en
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夏金环
张兴炜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Abstract

A method, apparatus and system for transmitting data are disclosed in the embodiments of the present invention which refer to the technical field of communications. The method includes: informing each User Equipment (UE) of a two-dimension group of correlation information of the two-dimension group, wherein the two-dimension group contains at least two UEs and the correlation information of the two-dimension group is applied for indicating the situation of time-frequency resources of the two-dimension group occupied by each UE; sending Physical Downlink Control Channel PDCCH for indicating the time-frequency resources of the two-dimension group to each UE; transmitting data with each UE on the time-frequency resources of the two-dimension group occupied by each UE. By means of adopting scheduling manner of two-dimension group and subdividing Physical Resource Block (PRB) resources on time domain and frequency domain, the present invention can improve resources utilization rate in particular application scenes, and increase the number of scheduled UEs, thus saving PDCCH overhead when large-scale equipments need to be scheduled.

Description

The method and apparatus for transmitting data
Specification transmits the method and apparatus technical field of data
The present invention relates to communication technical field, more particularly to a kind of method and apparatus for transmitting data.Background technology
3GPP (The 3rd Generation Partnership Project, third generation partner program）Normal structure is in LTE (Long Term Evolution, Long Term Evolution）The scheduling mechanism used in agreement, is by eNB (Evolved Node Base station, the base station of evolution）It is unified to carry out resource management control.When eNB has downlink data to send, eNB can be according to UE (User Equipment, user equipment）The channel information fed back in advance distributes suitable resource to the UE；And when UE has upstream data to need transmission, UE can send a scheduling request information to eNB to notify eNB to distribute transmitting uplink data resource for the UE.Specifically, eNB is in PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel）Middle carrying UE up-downgoing schedule information, to time-frequency resource allocating information and corresponding modulation coding information of the physical data channel that indicates UE etc..Wherein, physical data channel includes Physical Downlink Shared Channel PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel）With Physical Uplink Shared Channel PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel）.
In present LTE standard, the least unit of scheduling of resource is a TTI (Transmission Time Interval, Transmission Time Interval）That is, a subframe（SubFrame, SF), it is lms on the time, including two time slots.Each time slot includes 7 or 6 OFDM (Orthogonal Frequency Division Multiplex, OFDM）Symbol, here by taking 7 OFDM symbols as an example, as shown in figure 1, because system bandwidth is different on frequency domain, and the subcarrier including varying number.One PRE (Physical Resource Element, physical resource member）An OFDM symbol is occupied in time domain and a subcarrier is occupied on frequency domain, PRB (a Physical Resource Block, Physical Resource Block）7 OFDM symbols are occupied in time domain and 12 subcarriers are occupied on frequency domain.Assuming that the running time-frequency resource shown in Fig. 1 is the resource shared by a descending sub frame, wherein PDSCH, PDCCH and other control channels and physical layer signal can all take the common resource in this part.It is to be used to transmit upstream data or downlink data now to use in a standard with which specifically used part PRB and PRB of a PDCCH channel dispatch one UE, UE quantity, is to be indicated to UE by PDCCH channels.Because minimum thread is TTI, when eNB indicates that UE takes N number of PRB, refer to that UE occupies N number of PRB on the frequency domain of first time slot, but also it is implied by the TTI that N number of PRB of same position is also to give the UE on frequency domain in second time slot, or the UE is given with corresponding N number of PRB in second time slot of certain rule mapping. In the prior art, in time domain, in addition to by the OFDM symbol of other control channels and physical signalling occupancy, all remaining OFDM symbols in one TTI are allocated to the UE as the resource of transmission data, if the data volume of UE transmission is smaller, it may not thus cause the wasting of resources fully using the OFDM symbol quantity of distribution, reduce resource utilization ratio.The content of the invention
The problem of in order to solve the PRB wastings of resources in the prior art, the embodiments of the invention provide a kind of method and apparatus for transmitting data.The technical scheme is as follows：
On the one hand, there is provided a kind of method for transmitting data, methods described includes-informs the relevant information of two dimension group each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：The common identifier Group-RNTI of the two dimension group, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE；
The physical downlink control channel PDCCH of the running time-frequency resource for indicating the two dimension group is sent to each UE;
Carry out data transmission with each UE on the running time-frequency resource of each UE two dimension groups taken.
On the other hand there is provided a kind of network side equipment, the equipment includes：
Notification module, for the relevant information of two dimension group to be informed to each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：The common identifier Group-RNTI of the two dimension group, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE；Sending module, the physical downlink control channel PDCCH for sending the running time-frequency resource for indicating the two dimension group to each UE;
Transport module, for carrying out data transmission with each UE on the running time-frequency resource of each UE two dimension groups taken.
On the one hand, a kind of method for transmitting data is additionally provided, methods described includes：
First user equipment (UE) receives the relevant information for the two dimension group that network side equipment is sent, the two dimension group includes at least two UE, each UE that the relevant information of the two dimension group is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；Receive the Physical Downlink Control Channel for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent
PDCCH, the running time-frequency resource for the two dimension group that the first UE takes is known according to the relevant information of the two dimension group； Carry out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken.
On the other hand, additionally provide a kind of first user equipment, first user equipment includes-receiving module, for the relevant information for the two dimension group for receiving network side equipment transmission, the two dimension group includes at least two user equipment (UE)s, each UE that the relevant information of the two dimension group is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；
Module is known, for receiving the physical downlink control channel PDCCH for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent, the running time-frequency resource of the two dimension group according to shared by the relevant information of the two dimension group knows the first UE；Transport module, for carrying out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken.
The beneficial effect of technical scheme provided in an embodiment of the present invention is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity, so as to save PDCCH expenses when mass termination needs scheduling.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is running time-frequency resource schematic diagram in existing LTE standard；
Fig. 2 is a kind of flow chart of method for transmitting data provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the method for transmission data that further embodiment of this invention is provided；
Fig. 4 is one kind two dimension group schematic diagram that further embodiment of this invention is provided；
Fig. 5 is the schematic diagram that a kind of two dimension group that further embodiment of this invention is provided is allocated resource；
Fig. 6 is a kind of centralized resources distribution schematic diagram that further embodiment of this invention is provided；
Fig. 7 is a kind of schematic diagram for network side equipment that another embodiment of the present invention is provided；
Fig. 8 is a kind of flow chart of the method for transmission data that further embodiment of this invention is provided；
Fig. 9 is a kind of flow chart of the method for transmission data that further embodiment of this invention is provided；
Figure 10 is a kind of schematic diagram for first user equipment that another embodiment of the present invention is provided； Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Referring to Fig. 2, the embodiments of the invention provide a kind of method for transmitting data, including：
101：The relevant information of two dimension group is informed to each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier, the quantity of group, the index of the group where each UE, indexes of each UE in group where each UE in the common identifier Group-RNTI of the two dimension group, the two dimension group；
102：The physical downlink control channel PDCCH of the running time-frequency resource for indicating the two dimension group is sent to each UE; 103：Carry out data transmission with each UE in described two-dimentional group on the running time-frequency resource of each UE two dimension groups taken.
The beneficial effect of technical scheme provided in an embodiment of the present invention is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.Referring to Fig. 3, the embodiments of the invention provide a kind of method for transmitting data, including：
201：Network side equipment assigns to N number of user equipment (UE) in one two-dimentional group according to predetermined policy.
In the present embodiment, network side equipment is illustrated by taking eNB as an example.When eNB has downlink data to send, or when UE has upstream data to need transmission, eNB assigns to some UE in one two-dimentional group according to certain predetermined policy, two dimension group is for indicating the running time-frequency resource that each UE in described two-dimentional group takes, as shown in Figure 4, multiple UE, including Ul l, U12, U21, U22, ..., Ugl, Ug2, it is in big group that Group-RNTI is identified, Group-RNTI is this big group common identifier, group scheduling information, that is PDCCH information, using this identifier to CRC（CRC) scrambling adds and covered, and the UE in the group carries out blind Detecting in the search space for the PDCCH channels that this identifier is determined and obtains the group scheduling information, and solution covers the group scheduling information.Here predetermined policy is primarily referred to as some strategies of application layer, such as wishes that how many UE and which UE points uses group scheduling in a two-dimentional group, belongs to prior art category, the present embodiment is not specifically limited to this.
202：ENB informs the relevant information of two dimension group each UE in two-dimentional group.
In the present embodiment, it is necessary to notify relevant informations of each UE on this two dimension group in two-dimentional group before group scheduling, including：The index of group where Group-RNTI, the quantity g, UE of group（1,2, g), the index in group where UE（1,2) etc..Specifically, two-dimentional group information notice UE is had into two methods, method one is to use RRC (Radio Resource Control, radio resource control）Dedicated signaling informs each UE, and method two is to use MAC (Media Access Control, media access control）The each UE of signaled. In the present embodiment, the relevant information of two dimension group includes：Common identifier, the quantity of group, the index of the group in described two-dimentional group where each UE, the index in described two-dimentional group in group where each UE.
203：ENB sends the physical downlink control channel PDCCH o of the running time-frequency resource for indicating the two dimension group to each UE in two-dimentional group
Wherein, three kinds of resource allocation types defined in LTE protocol：The first, represents whether a PRB has been given to the UE with a bit, such as 1 represents and is allocated, and 0 represents unassigned, how many PRB in such system, it is necessary to which how many bit is indicated.Second, continuous P PRB is referred to as a PRB group, i.e. RBG indicates whether each RBG is allocated with a bit.The third, using two designators, with the original position of an instruction resource, another indicates the length for taking resource.In the present embodiment, the resource allocation in Group-RNTI plus the group scheduling information covered still can be not specifically limited using any one of above-mentioned three kinds of distribution types to this present embodiment.
In the present embodiment, UE is obtained after schedule information, and according to the instruction of two dimension group it is known that this group of UE of the schedule information mandate takes the situation of shared channel resources, i.e. these resources on frequency domain comprising how many PRB, which PRB is corresponded to respectively.Specifically, PRB is first carried out decile according to the quantity g of two-dimentional Zu Zhong groups on frequency domain, the PRB resource blocks of corresponding equal portions is obtained according still further to the index of group where UE by UE according to two-dimentional group information.In time domain, by further two equal portions of a TTI, i.e., each UE takes 7 OFDM symbol numbers in a time slot respectively, and UE determines to take first time slot or second time slot according to oneself index in group.It is 3 groups as shown in Figure 5,6 UE two dimension group takes the schematic diagram of distribution resource, situation of each small component with a PRB is illustrated in figure, wherein U11 and U12, U21 and U22, U31 and U32 take same TTI, two different time-gaps taken in identical subcarrier, time domain in a Τ Τ Ι are taken on U11 and U12 frequency domains；Taken on U21 and U22 frequency domains and take time slots different in a Τ Τ Ι respectively in the subcarrier different from U11 and U12, time domain；The subcarrier different from U11 and U12 and U21 and U22 is taken on U31 and U32 frequency domains.Here 6 UE are one big groups, are dispatched in same Τ Τ Ι.
204：ENB carries out data transmission with each UE in two-dimentional group on the running time-frequency resource that the UE takes.
In the present embodiment, alternatively, eNB carries out data transmission with each UE in two-dimentional group on the running time-frequency resource that the UE takes, including -1) each UE ascending HARQ (Hybrid Automatic are obtained according to the situation of each UE of reception data
Retransmission reQuest, hybrid automatic repeat-request）Feedback result；Wherein, HARQ feedback result includes：ACK/NACK (Acknowledgement/Negative Acknowledgement, the correct confirmation for confirming or negating)；
2) logic and operation is done to all each UE uplink HARQ feedback results and obtains uplink HARQ feedback final result；
3) the uplink HARQ feedback final result is fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.
Ascending HARQ is the feedback acknowledgment process that the network equipment is directed to upstream data；And descending HARQ be UE be directed to downlink data Feedback acknowledgment process.
In the present embodiment, if the form according to above-mentioned two dimension group carries out ascending resource mandate, this group of UE is after obtaining schedule information and distributing the running time-frequency resource that each UE takes, will be according to up-downgoing timing of channels relation, carry out data transmission on the PUSCH channels of corresponding sub-frame of uplink, feeding back ACK/NACK in eNB decoding datas, and the ffllCH channels of some descending sub frame after.Specifically, in the present embodiment, for two-dimentional group scheduling, the HARQ feedback of up PUSCH data is by the way of UE binding joint frequency division multiplexings.For example, UE scheduled during two-dimentional group scheduling can be allocated the cyclic shift that the identification code in an identification code, existing protocol uses CAZAC sequences.If in the case of being all identical for all this identification codes of UE in this group, the ACK/NACK feedbacks for the UE being mapped on the same PHICH channels in same raiCH groups, bound using UE, ACK/NACK feedbacks between i.e. each UE are using logic " with ", and its result is used as the corresponding feedback result of the identification code in two-dimentional group.Due in the present embodiment, group scheduling is used, the UE dispatched with a PDCCH in one group of UE, a group uses identical identification code, so multiple UE of same PHICH channels correspondence same identification code feedback result can only have one, i.e., by the way of UE bindings.Six UE as shown in Figure 5 are mapped on the same PHICH channels in same ffllCH groups, then eNB is decoded after the data that each UE is sent, if there is mistake in the UE data sent, shellfish ij eNB can feed back to NACK six UE in Fig. 5, wherein in feedack, feedback result only one of which NACK, but feedback target is simultaneously including six UE shown in Fig. 5.
Further, in the present embodiment alternatively, eNB and each UE in two-dimentional group carries out data transmission on the running time-frequency resource that the UE takes, including：Each UE uplink hybrid automatic repeat request HARQ feedback result is obtained according to the situation for the data for receiving each UE；Logic and operation is done to the uplink HARQ feedback result of whole UE in each group in two-dimentional group and obtains uplink HARQ feedback final result；The uplink HARQ feedback final result is fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.For example, when being mapped to same ffllCH channels, and using same identification code UE quantity it is more when, representative is used as with ACK/NACK feedback result, it is likely to result in the unnecessary feedbacks of many UE, for example, if the feedback result that six UE shown in Fig. 5 are received is NACK, then each UE is required for resending data, but may wherein only have U22 to occur in that mistake when sending upstream data, but will all UE undertake this mistake, which adds the feedback that other UE are unnecessary.For the quantity for the UE for reducing unnecessary feedback, it is preferable that when carrying out resource allocation to one big group, using the resource allocation of centralization.Centralization refers to：Resource is continuous in frequency domain dimension, and centre is not spaced.PUSCH and ffllCH corresponding relation now in the protocol be, the ACK/NACK feedbacks of data are distributed in different PHICH groups on the continuous difference PUSCH channels of frequency domain, the feedback of UE in group scheduling is placed on the same channel in different raiCH groups, the quantity for the UE that bundled feedback is needed in a raiCH channel is reduced, so that subsequent feedback HARQ needs the UE retransmitted quantity also just few.As shown in Figure 6, according to PHICH and PUSCH mapping relations, different group g PHICH channels may map in different ffllCH groups, the ACK/NACK feedbacks for the UE being mapped in same group on same PHICH channels are using binding, and such as U11 and U12 are mapped to the same channel in ffllCH groups 1 On, U21 and U22 are mapped on the same channel in PHICH groups 2, U31 and U32 are mapped on the same channel in PHICH groups 3, and 2 are reduced to using the quantity of UE bundled feedbacks in Fig. 6, and the UE of UE bundled feedbacks quantity is 6 in Fig. 4.
The group scheduling and feedback scheme that are proposed in the present embodiment are suitable for the initial transmission of semi-persistent scheduling.When feedback result is NACK, eNB or UE will retransmit the data sent before.Because the probability that the re-transmission of UE in group occurs is relatively low, and in group, UE re-transmissions situation does not have specific rule, therefore still dispatches a UE using a PDCCH for retransmitting.But for the less UE of packet, when continuing to use existing one-dimensional scheduling mode, the OFDM symbol that UE is distributed on time dimension is cannotd be used up, and causes the wasting of resources.In this programme, for the small data packets of re-transmission, repetition factor F is defined, the OFDM symbol Q shared by packet retransmitted according to the quantity P and UE of the OFDM symbol of distribution is determined, F=floor (P/Q), floor () represent to round downwards.ENB is mapped in resource impact according to repetition factor in time domain, i.e., carry out repeated encoding according to repetition factor to packet, so that the packet fully occupies the transfer resource that the UE is distributed, the data for needing to retransmit then are transmitted again.So carry out data transmission with each UE in described two-dimentional group on the transfer resource that the UE takes, in addition to：When receiving the confirmation nack message of negative of a UE feedback, OFDM symbol quantity according to shared by the packet that orthogonal frequency division multiplex OFDM symbol quantity and needs are retransmitted in the running time-frequency resource for the two dimension group that one UE takes, obtains repetition factor；The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of one UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that one UE takes；The transmission packet for needing to retransmit.
Alternatively, in the present embodiment, eNB carries out data transmission with each UE in two-dimentional group on the running time-frequency resource that the UE takes, in addition to：Each UE uplink hybrid automatic repeat request HARQ feedback results are obtained according to the situation for the data for receiving each UE；Each UE during the uplink HARQ feedback result of whole UE in each group in two-dimentional group is fed back into each group respectively in a time multiplexed manner on a Physical HARQ Indicator Channel PHICH channel.
In embodiments of the present invention, the HARQ feedback on the up PUSCH of group scheduling can also use FDM+TDM (frequency division multiplexings+time division multiplexing）Mode, including：
1st, during up PUSCH resource allocations so that the corresponding feedback resources of each group are distributed in different ffllCH groups, i.e., using frequency division multiplexing, the feedback of each group is distributed in different ffllCH groups；
2nd, for the upstream data of each UE in group, TDM modes can be used by being sent to UE feedback, and UE is indexed according to the sequence number controlled oneself, and the raiCH channels of corresponding descending sub frame are taken respectively.
FDD (Frequency Division Duplex, FDD）：Feedback occurs in n+4+K, UE index in K correspondences group.Upstream data is sent on the n-th subframe PUSCH this refers to UE, feedback occurs in+K the subframes of n+4,4 be that specified in present LTE protocol, the feedback to the upstream data of the n-th subframe occurs in the n-th+4 subframe.
TDD (Time Division Duplex, time division duplex）：Feedback occurs in n+k+K, each up-downgoing proportioning of k correspondences When middle feedback occurs, UE index in K correspondences group, it is fed back in the k-th descending sub frame after n+k.It is specific to represent：Upstream data is sent on the PUSCH of the n-th subframe, during one UE of scheduling, feedback should occur in the n-th+k subframes, be group scheduling now still.There are two UE in such as group, so the 1st UE of K=0,1. feedback should occur in the n-th+k+0 subframes, the second UE feedback moment occurs in η+k+l subframes.
In embodiments of the present invention, UE quantity is 2 in above-mentioned two-dimentional group of group, and UE quantity can be configured on demand in group here in fact, and the quantity that can configure UE in multiple UE, and each group can also be different.Group scheduling information is used to indicate one section of running time-frequency resource used in a group, and the UE in group is according to group information by frequency domain and time-domain resource mean allocation, and UE takes corresponding resource location according to the index position of oneself.In fact here can also be without by resource mean allocation, during group scheduling, each UE needs in direct instruction group time-frequency location and size.Can be each UE resource sizes for distributing according to need different and position under this mode, but the amount of bits that needs are indicated is larger, and expense is larger.
Further, in the present embodiment, it is allocated between group on frequency domain, each group takes a PRB, and the UE in group distributes the OFDM symbol number each accounted in a TTI.This mode is mainly considered on the one hand and existing protocol is compatible, is on the other hand all cannotd be used up in view of OFDM symbol numbers of the UE in a TTI, more PRB need not be distributed on frequency domain.In fact, this mode can be further expanded, and can be allocated on frequency domain by granularity of sub-carrier number, can also be allocated by granularity of RBG；In time domain, the UE in group can be allocated by granularity of OFDM symbol, can also be allocated using time slot or subframe as granularity.
The relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；The descending HARQ feedback result of each UE is then received on the feedback resources of each UE two dimension groups taken.
The beneficial effect for the embodiment of the method that the present invention is provided is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.Meanwhile, new feedback mechanism is added in group scheduling, a feedback result can correspond to multiple UE, so as to also solve the problem of feedback resources are limited.Referring to Fig. 7, the embodiments of the invention provide a kind of network side equipment, including：Notification module 301, sending module 302 and transport module 303.
Notification module 301, relevant information for two dimension group informs each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：The common identifier Group-RNTI of the two dimension group, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE；Sending module 302, the physical downlink control channel PDCCH for sending the running time-frequency resource for indicating the two dimension group to each UE; Transport module 303, for carrying out data transmission with each UE on the running time-frequency resource of each UE two dimension groups taken.
Notification module 301, sending module 302 and transport module 303 can be processor respectively.The network side equipment can be specifically base station eNB.
In the present embodiment, transport module 303, including：
First receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE；
First acquisition unit, does logic and operation for the uplink HARQ feedback result to all each UE and obtains ascending HARQ feedback final result；
First transmitting element, for the uplink HARQ feedback final result to be fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.
Further, alternatively, in the present embodiment, transport module 303 includes：
Second receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE；
Second acquisition unit, does logic and operation for the uplink HARQ feedback result to whole UE in each group in two-dimentional group and obtains uplink HARQ feedback final result；
Second transmitting element, for the uplink HARQ feedback final result to be fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.
Alternatively, transport module 303, including：
3rd receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE；
3rd transmitting element, for the uplink HARQ feedback result of whole UE in each group in two-dimentional group to be fed back into each group respectively in a time multiplexed manner on a Physical HARQ Indicator Channel PHICH channel in each UE.
Above-mentioned 8 units can be the unit in processor respectively.
In the present embodiment, the relevant information of two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；Then the equipment also includes：
Receiving module, the descending HARQ feedback results for receiving each UE on the feedback resources of each UE two dimension groups taken.
Wherein receiving module can be processor.
Alternatively, transport module 303 in the present embodiment, is additionally operable to：
When receiving the confirmation nack message of negative of UE feedback, according to one UE two dimension groups taken when The OFDM symbol quantity shared by packet that orthogonal frequency division multiplex OFDM symbol quantity and needs are retransmitted in frequency resource, obtains repetition factor；
The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of one UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that one UE takes;The transmission packet for needing to retransmit.
The beneficial effect for the device embodiment that the present invention is provided is：Two-dimentional group scheduling mode, is finely divided in time domain and frequency domain to PRB resources, not only improves the resource utilization under application-specific scene, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.Referring to Fig. 8, the embodiments of the invention provide a kind of method for transmitting data, including：
401：First user equipment (UE) receives the relevant information for the two dimension group that network side equipment is sent, the two dimension group includes at least two UE, each UE that the relevant information of the two dimension group is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；
402：The physical downlink control channel PDCCH for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent is received, the running time-frequency resource for the two dimension group that the first UE takes is known according to the relevant information of the two dimension group；
403：Carry out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken.
The beneficial effect for the device embodiment that the present invention is provided is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.
I.e. the first UE current UEs described in the embodiment of the present invention.Current UE can be any UE in two-dimentional group.Referring to Fig. 9, the embodiments of the invention provide a kind of method for transmitting data, including：
501：The relevant information for the two dimension group that user equipment reception network side equipment is sent, after the PDCCH of the running time-frequency resource for indicating the two dimension group of network side equipment transmission is received, the running time-frequency resource according to shared by the relevant information of two dimension group knows oneself.
Preferably, in the present embodiment, as described in above-mentioned embodiment, network side equipment assigns to UE in two-dimentional group, by the relevant information of the UE two dimension groups in each two-dimentional group of signaled, the two-dimentional UE included at least two UE, the present embodiment that organizes can be any UE in two-dimentional group, each UE that the relevant information of the two dimension group is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：：Common identifier in the two dimension group Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE.
In the present embodiment, user equipment is after schedule information is received, the running time-frequency resource according to shared by the relevant information of the two dimension group knows oneself, including：On frequency domain, according to the quantity of the two-dimentional Zu Zhong groups and the index of oneself place group, the Physical Resource Block PRB oneself taken is determined;In time domain, according to oneself index in group, determine that oneself takes first time slot or second time slot, so as to know the running time-frequency resource shared by oneself.
In the present embodiment, two-dimentional group scheduling information is used to indicate one section of running time-frequency resource used in a group, and the UE in group is according to group information by frequency domain and time-domain resource mean allocation, and UE takes corresponding resource location according to the index position of oneself.In fact here can also be without by resource mean allocation, during group scheduling, each UE needs in direct instruction group time-frequency location and size.Can be each UE resource sizes for distributing according to need different and position under this mode, but the amount of bits that needs are indicated is larger, and expense is larger.
502：User equipment carries out data transmission with network side equipment on the running time-frequency resource that the user equipment takes.
Preferably, in the present embodiment, user equipment and the network side equipment carry out data transmission on the running time-frequency resource shared by oneself, including：The descending HARQ feedback result of the UE is physically sent in row shared channel PUSCH reserved resource；If having transmitting uplink data on the PUSCH, it is originally intended to send the descending HARQ feedback result of the UE in reserved resource on the part resource of transmission data；If no transmitting uplink data on the PUSCH, the descending HARQ feedback result of the UE is subjected to repeated encoding in the reserved resource, so that the descending HARQ feedback result of the UE fully occupies the reserved resource, and transmit the descending HARQ feedback result of the UE.
In the present embodiment, UE in one two-dimentional group is divided into after schedule information is received by eNB, running time-frequency resource according to shared by the relevant information of two dimension group knows oneself, and the resource location indicated by schedule information receive and decoding data, and according to up-downgoing timing of channels relation, feeding back ACK/NACK on the PUSCH channels of corresponding sub-frame of uplink.In the present embodiment, for two-dimentional group scheduling, the HARQ feedback of descending PDSCH data takes PUSCH group schedulings resource feedback using predistribution.Wherein, descending PDSCH occurs in the n-th subframe, and feedback occurs in the n-th+4 subframe（FDD ) ;Or descending PDSCH occurs in the n-th subframe, feedback occurs in the n-th+k subframes（TDD), different values are taken when the different up-downgoings of k correspondences tdd mode are matched.
In the present embodiment, the HARQ feedback of descending PDSCH data uses semi-persistent scheduling mode, predefines descending PDSCH HARQ feedback resources；The similar PUSCH of distribution of resource resource group scheduling, UE can recognize the feedback resources that UE takes respectively in each big group, and great Zu Nei groups, group.As long as semi-persistent scheduling mode refers to define descending group scheduling and carried out downlink data transmission, resource transmission feedback information is just reserved in the way of pre-defined on up PUSCH channels, in the feedback of PUSCH channel downlink datas.The mode of reserved resource is identical with the mode of above-mentioned two-dimentional group scheduling distribution PUSCH resources.When there is transmitting uplink data, in the position punching transmission ACK/NACK for having data, when there is no data transfer, since being assigned with
PUSCH resources, are just repeated several times a PUSCH resource by ACK/NACK information and fill up, can so improve PUSCH feedback informations Accurate delivery degree, can guarantee that the resource of PUSCH distribution is not wasted again.
Alternatively, in the present embodiment, the relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；UE knows the feedback resources for the two dimension group that the UE takes according to the relevant information of the two dimension group, and sends on the feedback resources of the UE two dimension groups taken the descending HARQ feedback result of the UE.
Further, alternatively, carry out data transmission with the network side equipment on transfer resource shared by oneself, including：When receiving the confirmation nack message of negative of the network side equipment feedback, the OFDM symbol quantity shared by packet that orthogonal frequency division multiplex OFDM symbol quantity and needs in the running time-frequency resource for the two dimension group that the UE takes are retransmitted, obtains repetition factor；The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of the UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that the UE takes；The transmission packet for needing to retransmit.
Group scheduling and feedback scheme that the present embodiment is proposed are suitable for the initial transmission of semi-persistent scheduling.When feedback result is
During NACK, eNB or UE will retransmit the data sent before.Because the probability that the re-transmission of UE in group occurs is relatively low, and in group, UE re-transmissions situation does not have specific rule, therefore still dispatches a UE using a PDCCH for retransmitting.But for the less UE of packet, when continuing to use one-dimensional scheduling mode, the OFDM symbol that UE is distributed on time dimension is cannotd be used up, and causes the wasting of resources.In this programme, for the small data packet of re-transmission, define repetition factor F, the OFDM symbol Q shared by packet retransmitted according to the quantity P and UE of the OFDM symbol of resource allocation is determined, F=floor (P/Q), floor () are to round downwards.UE maps in resource impact according to repetition factor in time domain, i.e., the packet retransmitted to needs carries out repeated encoding according to repetition factor, so that the packet fully occupies the transfer resource shared by oneself；Then the data for needing to retransmit are transmitted.
In embodiments of the present invention, the HARQ feedback on the descending PDSCH of group scheduling can also use FDM+TDM (frequency division multiplexings+time division multiplexing）Mode, similar to up PUSCH HARQ feedback；The different HACK feedback resources of each group correspondence, S Jie PUCCH channels；Difference UE HARQ feedback uses TDM in each group, and detail is repeated no more with up PUSCH HARQ feedback in this present embodiment to this.
The beneficial effect for the embodiment of the method that the present invention is provided is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.Meanwhile, new feedback mechanism is added in group scheduling, a feedback result can correspond to multiple UE, so as to also solve the problem of feedback resources are limited.Referring to Figure 10, the embodiments of the invention provide a kind of first user equipment, including：Receiving module 601, know module 602 and transport module 603.
Receiving module 601, the relevant information of the two dimension group for receiving network side equipment transmission, the two dimension group includes at least two Individual user equipment (UE), each UE that the relevant information that the two dimension is organized is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；
Know module 602, for receiving the physical downlink control channel PDCCH for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent, the running time-frequency resource of the two dimension group according to shared by the relevant information of the two dimension group knows the first user equipment；
Transport module 603, for carrying out data transmission with the network side equipment on the running time-frequency resource of the two dimension group shared by the first user equipment.
Receiving module 601, know that module 602 and transport module 603 can be processor respectively.The user equipment of the present embodiment can be each Terminal Type of including but not limited to mobile phone, kneetop computer and tablet personal computer.
Preferably, module 602 is known, specifically for-on frequency domain, according to the index of group where the quantity of the two-dimentional Zu Zhong groups and the UE, determine the Physical Resource Block PRB that the UE takes;
In time domain, according to indexes of the UE in group, determine that the UE takes first time slot or second time slot, so as to know the running time-frequency resource shared by oneself.
Alternatively, the relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group;Then the equipment also includes：
The descending HARQ feedback result of the UE is sent on the feedback resources that feedback module, the feedback resources of the two dimension group for knowing the UE occupancy according to the relevant information of the two dimension group, and the two dimension taken in the UE are organized.
Wherein feedback module can be processor.
Preferably, transport module 603 in the present embodiment, specifically for：
The descending HARQ feedback result of the UE is physically sent in row shared channel PUSCH reserved resource；If having transmitting uplink data on the PUSCH, it is originally intended to send the descending HARQ feedback result of the UE in reserved resource on the part resource of transmission data；
If no transmitting uplink data on the PUSCH, the descending HARQ feedback result of the UE is subjected to repeated encoding in the reserved resource, so that the descending HARQ feedback result of the UE fully occupies the reserved resource, and transmit the descending HARQ feedback result of the UE.
Alternatively, transport module 603, are additionally operable to：
When receiving the confirmation nack message of negative of the network side equipment feedback, OFDM symbol quantity of the orthogonal frequency division multiplex OFDM symbol quantity shared by with the packet for needing to retransmit in the running time-frequency resource of the UE two dimension groups taken, Obtain repetition factor；
The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of the UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that the UE takes；
The transmission packet for needing to retransmit.
Referring to Figure 11, the embodiment of the present invention additionally provides a kind of system for transmitting data, including：Network side equipment 300 as described above and the first user equipment 400 as described above.
The beneficial effect for the device embodiment that the present invention is provided is：Using two-dimentional group scheduling mode, PRB resources are finely divided in time domain and frequency domain, the resource utilization under application-specific scene is not only improved, also increases the UE of scheduling quantity；So as to save PDCCH expenses when mass termination needs scheduling.The device and system that the present embodiment is provided, belong to same design, it implements process and refers to embodiment of the method, repeats no more here with embodiment of the method.One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment can be completed by hardware, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read-only storage, disk or CD etc..Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (1)

  1. Claims
    1st, a kind of method for transmitting data, it is characterised in that methods described includes：
    The relevant information of two dimension group is informed to each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：The common identifier Group-RNTI of the two dimension group, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE；
    The physical downlink control channel PDCCH of the running time-frequency resource for indicating the two dimension group is sent to each UE;
    Carry out data transmission with each UE on the running time-frequency resource of each UE two dimension groups taken.
    2nd, according to the method described in claim 1, it is characterised in that described to carry out data transmission on the running time-frequency resource of each UE two dimension groups taken with each UE, including：
    Each UE uplink hybrid automatic repeat request HARQ feedback result is obtained according to the situation for the data for receiving each UE；
    Logic and operation is done to all each UE uplink HARQ feedback results and obtains uplink HARQ feedback final result；The uplink HARQ feedback final result is fed back to described each on a Physical HARQ Indicator Channel PHICH channel
    UE o
    3rd, according to the method described in claim 1, it is characterised in that described to carry out data transmission on the running time-frequency resource of each UE two dimension groups taken with each UE, including：
    Each UE uplink hybrid automatic repeat request HARQ feedback result is obtained according to the situation for the data for receiving each UE；
    Logic and operation is done to the uplink HARQ feedback result of whole UE in each group in two-dimentional group and obtains uplink HARQ feedback final result；
    The uplink HARQ feedback final result is fed back to described each on a Physical HARQ Indicator Channel PHICH channel
    UE o
    4th, according to the method described in claim 1, it is characterised in that described to carry out data transmission including on the running time-frequency resource of each UE two dimension groups taken with each UE：
    Each UE uplink hybrid automatic repeat request HARQ feedback knot is obtained according to the situation for the data for receiving each UE Really；
    By each UE of the ascending HARQ feedback result of whole UE in each group in two-dimentional group in a physics HARQ indicates to feed back to each group respectively in a time multiplexed manner on channel PHICH channels.5th, the method according to any one of claim 11, it is characterised in that the relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；
    Then methods described also includes：
    The descending HARQ feedback result of each UE is received on the feedback resources of each UE two dimension groups taken.6th, the method according to claim any one of 1-5, it is characterised in that described and each UE is described each
    Carry out data transmission on the running time-frequency resource for the two dimension group that UE takes, including：
    When receiving the confirmation nack message of negative of a UE feedback, OFDM symbol quantity according to shared by the packet that orthogonal frequency division multiplex OFDM symbol quantity and needs are retransmitted in the running time-frequency resource for the two dimension group that one UE takes, obtains repetition factor；
    The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of one UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that one UE takes；The transmission packet for needing to retransmit.
    7th, a kind of network side equipment, it is characterised in that the equipment includes：
    Notification module, for the relevant information of two dimension group to be informed to each UE in described two-dimentional group, the two dimension group includes at least two UE, the relevant information of the two dimension group is used to indicate that each UE takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：The common identifier Group-RNTI of the two dimension group, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE；
    Sending module, the physical downlink control channel PDCCH for sending the running time-frequency resource for indicating the two dimension group to each UE;
    Transport module, for carrying out data transmission with each UE on the running time-frequency resource of each UE two dimension groups taken.
    8th, equipment according to claim 7, it is characterised in that the transport module, including the-the first receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE； First acquisition unit, uplink HARQ feedback final result is obtained for doing logic and operation to all each UE uplink HARQ feedback results；
    First transmitting element, for the uplink HARQ feedback final result to be fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.
    9th, equipment according to claim 7, it is characterised in that the transport module, including the-the second receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE；
    Second acquisition unit, does logic and operation for the uplink HARQ feedback result to whole UE in each group in two-dimentional group and obtains uplink HARQ feedback final result；
    Second transmitting element, for the uplink HARQ feedback final result to be fed back into each UE on a Physical HARQ Indicator Channel PHICH channel.
    10th, equipment according to claim 7, it is characterised in that the transport module, including the-the three receiving unit, the uplink hybrid automatic repeat request HARQ feedback result for obtaining each UE according to the situation for the data for receiving each UE；
    3rd transmitting element, for the uplink HARQ feedback result of whole UE in each group in two-dimentional group to be fed back into each group respectively in a time multiplexed manner on a Physical HARQ Indicator Channel PHICH channel in each UE.
    11st, the equipment according to any one of claim 7-10, it is characterised in that the relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；
    Then the equipment also includes：
    Receiving module, the descending HARQ feedback results for receiving each UE on the feedback resources of each UE two dimension groups taken.
    12nd, the equipment according to claim any one of 7-11, it is characterised in that the transport module, is additionally operable to：When receiving the confirmation nack message of negative of a UE feedback, OFDM symbol quantity according to shared by the packet that orthogonal frequency division multiplex OFDM symbol quantity and needs are retransmitted in the running time-frequency resource for the two dimension group that one UE takes, obtains repetition factor；
    The packet retransmitted to the needs is according to the repetition factor on the running time-frequency resource of one UE two dimension groups taken Repeated encoding is carried out, so that the packet for needing to retransmit fully occupies the running time-frequency resource for the two dimension group that one UE takes；The transmission packet for needing to retransmit.
    13rd, a kind of method for transmitting data, it is characterised in that methods described includes：
    First user equipment (UE) receives the relevant information for the two dimension group that network side equipment is sent, and the two dimension group includes at least two
    UE, each UE that the relevant information that the two dimension is organized is used to indicate in two-dimentional group take the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；
    The physical downlink control channel PDCCH for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent is received, the running time-frequency resource for the two dimension group that the first UE takes is known according to the relevant information of the two dimension group；
    Carry out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken.
    14th, method according to claim 13, it is characterised in that the relevant information according to the two dimension group knows the running time-frequency resource for the two dimension group that the first UE takes, including：
    On frequency domain, according to the index of group where the quantity of the two-dimentional Zu Zhong groups and the first UE, described first is determined
    The Physical Resource Block PRB that UE takes;
    In time domain, according to indexes of the first UE in group, determine that the first UE takes first time slot or second time slot.15th, the method according to claim 13 or 14, it is characterised in that the relevant information of the two dimension group is additionally operable to indicate the situation for the feedback resources that each UE takes two dimension group；
    Then methods described also includes：
    The feedback resources for the two dimension group that the first UE takes are known according to the relevant information of the two dimension group, and send on the feedback resources of the first UE two dimension groups taken the descending HARQ feedback result of the first UE.
    16th, the method according to claim 13 or 14, it is characterised in that described to carry out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken, including：
    The descending HARQ feedback result of the first UE is physically sent in row shared channel PUSCH reserved resource；If having transmitting uplink data on the PUSCH, it is originally intended to send the descending HARQ feedback result of the first UE in reserved resource on the part resource of transmission data； If no transmitting uplink data on the PUSCH, the descending HARQ feedback result of first UE is subjected to repeated encoding in the reserved resource, so that the descending HARQ feedback result of the first UE fully occupies the reserved resource, and transmit the descending HARQ feedback result of the first UE.17th, the method according to any one of claim 13 to 16, it is characterised in that described to carry out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken, including：
    When receiving the confirmation nack message of negative of the network side equipment feedback, the OFDM symbol quantity shared by packet that orthogonal frequency division multiplex OFDM symbol quantity and needs in the running time-frequency resource for the two dimension group that the first UE takes are retransmitted, obtains repetition factor；
    The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of the first UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that the first UE takes；The transmission packet for needing to retransmit.
    18th, a kind of first user equipment (UE), it is characterized in that, first user equipment includes-receiving module, for the relevant information for the two dimension group for receiving network side equipment transmission, the two dimension group includes at least two user equipment (UE)s, each UE that the relevant information of the two dimension group is used to indicate in two-dimentional group takes the situation of the running time-frequency resource of the two dimension group, and the relevant information of the two dimension group includes：Common identifier Group-RNTI, the quantity of the two-dimentional Zu Nei groups, the index of the group where each UE, indexes of each UE in group where each UE in the two dimension group；Module is known, for receiving the physical downlink control channel PDCCH for being used to indicate the running time-frequency resource of the two dimension group that the network side equipment is sent, the running time-frequency resource of the two dimension group according to shared by the relevant information of the two dimension group knows the first UE；Transport module, for carrying out data transmission with the network side equipment on the running time-frequency resource of the first UE two dimension groups taken.
    19th, equipment according to claim 18, it is characterised in that described to know module, specifically for-on frequency domain, according to the index of group where the quantity of the two-dimentional Zu Zhong groups and the first UE, determine described first
    The Physical Resource Block PRB that UE takes;
    In time domain, according to indexes of the first UE in group, determine that the first UE takes first time slot or second time slot, so as to know the running time-frequency resource shared by the first UE.20th, the equipment according to claim 18 or 19, it is characterised in that the relevant information of the two dimension group is additionally operable to refer to Show that each UE takes the situation of the feedback resources of two dimension group；
    Then the equipment also includes：
    The descending HARQ feedback result of the first UE is sent on the feedback resources that feedback module, the feedback resources of the two dimension group for knowing the first UE occupancy according to the relevant information of the two dimension group, and the two dimension taken in the first UE are organized.
    21st, the equipment according to claim 18 or 19, it is characterised in that the transport module, specifically for：The descending HARQ feedback result of the first UE is physically sent in row shared channel PUSCH reserved resource；If having transmitting uplink data on the PUSCH, it is originally intended to send the descending HARQ feedback result of the first UE in reserved resource on the part resource of transmission data；
    If no transmitting uplink data on the PUSCH, the descending HARQ feedback result of first UE is subjected to repeated encoding in the reserved resource, so that the descending HARQ feedback result of the first UE fully occupies the reserved resource, and transmit the descending HARQ feedback result of the first UE.
    22nd, the equipment according to claim any one of 18-21, it is characterised in that the transport module, is additionally operable to：When receiving the confirmation nack message of negative of the network side equipment feedback, the OFDM symbol quantity shared by packet that orthogonal frequency division multiplex OFDM symbol quantity and needs in the running time-frequency resource for the two dimension group that the first UE takes are retransmitted, obtains repetition factor；
    The packet retransmitted to the needs carries out repeated encoding according to the repetition factor on the running time-frequency resource of the first UE two dimension groups taken, so that the running time-frequency resource for needing the packet of re-transmission fully to occupy the two dimension group that the first UE takes；The transmission packet for needing to retransmit.
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CN107872290A (en) * 2016-09-26 2018-04-03 电信科学技术研究院 A kind of mark UE method, network side equipment, UE and system
CN107872290B (en) * 2016-09-26 2021-03-19 电信科学技术研究院 Method for identifying UE, network side equipment, UE and system
CN110495119A (en) * 2017-04-11 2019-11-22 Oppo广东移动通信有限公司 Configuration method and the network equipment, the terminal of down control channel
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