CN101729122B - Method for transmitting control information by distributed relay system - Google Patents
Method for transmitting control information by distributed relay system Download PDFInfo
- Publication number
- CN101729122B CN101729122B CN2008102250415A CN200810225041A CN101729122B CN 101729122 B CN101729122 B CN 101729122B CN 2008102250415 A CN2008102250415 A CN 2008102250415A CN 200810225041 A CN200810225041 A CN 200810225041A CN 101729122 B CN101729122 B CN 101729122B
- Authority
- CN
- China
- Prior art keywords
- qos
- business datum
- information
- group
- qos group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for transmitting control information by a distributed relay system, comprising the following steps of: receiving service data from a radio link control (RLC) layer by a media access control (MAC) layer of a relay link, and requiring for carrying out Qos group classification for the received service data according to the quality of service (Qos) of the service data if the service data are determined to be unbelonging to the service data of user equipment (UE) connected with the media access control (MAC) layer; dispatching Qos groups, and generating control information which corresponds to each Qos group according to the dispatch condition of the Qos group; and multiplexing the control information and then transmitting. The invention greatly reduces the quantity of the control information transmitted on the relay link by using the user equipment (UE) as dispatch granularity in the prior art because one Qos group corresponds to one piece of the control information, thereby reducing the transmission time delay of the control information and enhancing the transmission efficiency and the resource utility ratio of the relay link.
Description
Technical field
The present invention relates to the information processing technology, the method for particularly a kind of distributed relay system transmissions control information.
Background technology
At long-term evolution plan (LTE; Long Term Evolved) in the evolution version LTE-Advanced system, in order to improve subscriber equipment (UE, User Equipment) and base station (BS; Base Station) signal transmission quality between; Increase service data transmission rate, enlarge the coverage of BS and improve cell capacity, introduced nontransparent relaying technique.Promptly between UE and BS, introduce relay station (RS, Relay Station), make UE, BS and RS form nontransparent relay system.In nontransparent relay system; Between BS and the RS and the transmission link between RS and the RS be called repeated link; Transmission link between RS and the UE is called access link, and the UE in the RS coverage realizes being connected through RS and BS, then carries out direct communication between UE and the RS.
In existing nontransparent distributed relay system, BS and RS possess the ability of management, distribution and the scheduling of Radio Resource, accomplish the scheduling to subordinate's website (RS) by higher level's website (BS), the transmission of realization up-downgoing business datum.
Fig. 1 is existing nontransparent relay system structural representation.Referring to Fig. 1, this system comprises: BS, a plurality of RS (RS1, RS2 ..., RSn) and a plurality of UE, wherein, be down link with the transmission link of BS to UE, for BS and RS
n, BS is called higher level's website, with RS
nBe called subordinate's website; Similar ground is for RS
nAnd RS
N-1, RS
nBe called higher level's website, RS
N-1Be called subordinate's website.
BS and RS
nBetween and the transmission link between the RS be repeated link, a BS possibly comprise a plurality of RS, also possibly comprise a plurality of UE (not shown)s that directly link to each other with BS;
A RS possibly comprise the RS (subordinate's website) of a plurality of next jumping, also possibly comprise a plurality of UE that directly link to each other with this RS, and the transmission link between RS and the direct UE that links to each other is an access link;
UE realizes communicating by letter with BS through access link and repeated link.
Among Fig. 1; In the distributed relay system of a plurality of RS cascades; If connected n RS between UE and the BS, then need to jump link between BS and the UE and could accomplish the up-downgoing business data transmission through n+1, BS and RS are through sending control information on repeated link to control the up-downgoing business data transmission of this UE; The up-downgoing business data transmission of a UE is controlled in every control information on every jumping repeated link, comprise uplink control information and down link control information.Because transmission simultaneously has the business datum of a plurality of UE on the repeated link between BS and the RS; Thereby; Need BS and RS through on repeated link, sending a plurality of control informations to control the up-downgoing business data transmission of corresponding a plurality of UE; For the RS on the repeated link, the control information that the control information that receives subordinate website feedback and higher level's website are issued; And send control information respectively to subordinate's website and with the UE that communicates that self directly links to each other, the control information of feedback is reported higher level's website.
Behind the current stop receiving control information; Processing through physical layer; Promptly physical layer process is carried out in the control information that receives, for example, accomplished chnnel coding, modulation, precoding and the resource mapping treatment of control information; To be carried on through the control information of physical layer process on the physical control channel then, and be sent to subordinate's website respectively or corresponding UE is dispatched with the UE that communicates that self directly links to each other.
Visible by existing nontransparent relay system; BS or RS are that unit generates control information with UE, and the up-downgoing business data transmission of a UE is controlled in every control information on every jumping repeated link, and BS transfers to UE with control information through RS; Perhaps; RS transfers to BS with control information, because every control information need be passed through the processing of the corresponding RS physical layer of repeated link, the processing delay of control information is long, efficiency of transmission is lower; Further, along with the increase of scheduling UE number, the also corresponding increase of the control information of transmitting on the physical control channel; The also corresponding increase of the resource overhead of physical layer transmission control information; Wasted valuable Radio Resource, the feasible UE limited amount that inserts BS, and cause that easily the processing delay of control information increases; Make the efficiency of transmission of control information further reduce, reduced the resource utilization on the repeated link.
Summary of the invention
In view of this; A main purpose of the present invention is to provide the method for a kind of distributed relay system distributed relay system transmissions control information, reduce control information on the repeated link propagation delay time, improve the efficiency of transmission and the resource utilization of repeated link.
For achieving the above object, the invention provides the method for a kind of distributed relay system transmissions control information, this method may further comprise the steps:
The media interviews control MAC layer of repeated link transmitter side receives the business datum from Radio Link control rlc layer; For not belonging to the business datum of the user equipment (UE) that self links to each other, the business datum that receives is carried out the Qos group categories if confirm business datum according to the Qos requirement of business datum;
For organizing to dispatch and generate said every type of Qos according to the scheduling situation that every type of Qos organizes, all kinds of Qos organize control information corresponding;
With said control information multiplexing back transmission.
The media interviews control MAC layer of said repeated link transmitter side further comprises before receiving the step from the business datum of Radio Link control rlc layer:
The MAC layer of repeated link receiver side receives the Qos group business datum of carrying CRC CRC check object information from physical layer;
Confirm that according to the CRC check object information Qos group business datum that receives is correct, the Qos group business datum of said reception is carried out demultiplexing, recover the Medium Access Control (MAC) Protocol Data Unit PDU business datum of single UE;
MAC PDU business datum is reverted to RLC PDU business datum, send to rlc layer.
The said Qos group business datum of confirming to receive according to the CRC check object information correctly further comprises:
If confirm that the Qos group business datum that receives is correct, form the MAC layer of confirming feedback information and being sent to transmitter side to receiving correct Qos group business datum;
If the Qos that confirms to receive group business datum mistake generates non-affirmation feedback information and is sent to the MAC layer of transmitter side, and waits for the re-transmission of the Qos group business datum of said mistake.
Saidly form and confirm that feedback information further comprises: carry out every type of corresponding affirmation feedback information of Qos group business datum multiplexing receiving correct Qos group business datum.
Said Qos according to business datum requires that the business datum that receives is carried out the Qos group categories and specifically comprises:
The MAC layer is according to the numbering of the logic channel that receives business datum; After determining the affiliated Qos group of traffic data type and business datum; According to the Qos requirement of business datum, the business datum that identical Qos is required is combined as one type of Qos group, and upgrades the buffer status report BSR information of this Qos group.
The said scheduling specifically for all kinds of Qos groups comprises:
The MAC layer is according to the precedence information of BSR information with this Qos group of Qos group, the Qos type of selection scheduling, and, be all kinds of Qos set of dispense resources according to the situation of available radio resources and physical control channel;
According to the priority of the UE that comprises in one type of Qos group, the data volume of each UE of the scheduling of confirming to comprise in the business datum of such Qos group, and carry out the business datum of each UE multiplexing;
The mixing of confirming the transmission of every type of Qos group retransmits the HARQ process automatically.
Further comprise: the business datum of the group of all kinds of Qos after multiplexing is sent to physical layer carry out chnnel coding, modulation and physical channel mapping back and send.
Said scheduling situation comprises: the data volume of every type of Qos group business datum, carry the physical resource and the modulating-coding speed of such Qos group business datum.
Said control information comprises: uplink control information and down link control information.
Said uplink control information comprises: dispatch request information and downlink service data feedback information.
Said dispatch request information comprises: the Qos group quantity, each Qos group id and each the Qos group scheduling requested content that comprise in the dispatch request information.
Said downlink service data feedback information comprises: channel quality indication feedback information, Qos group process number, Qos group process identification (PID) and Qos group progress feedback information.
Transmit said uplink control information through Physical Uplink Control Channel.
Said down link control information comprises: the feedback information of schedule information and uplink business data.
Said schedule information comprises: Qos organizes quantity, each Qos group id and each Qos group scheduling information content.
Said uplink business data feedback information comprises: Qos group process number, Qos group process identification (PID) and Qos group progress feedback information.
Transmit said schedule information through Physical Downlink Control Channel, transmit said upstream data feedback information through the physical mixed automatic re-transmission indicating channel.
Visible by above-mentioned technical scheme; The method of distributed relay provided by the invention system distributed relay system transmissions control information; The business datum that MAC layer through repeated link is confirmed to receive for the business datum that does not belong to the UE that self links to each other after; Qos according to business datum requires business datum is carried out the Qos group categories, dispatches and generates every type of Qos according to the scheduling situation that every type of Qos organizes for all kinds of Qos groups and organize control information corresponding, with control information multiplexing back transmission.Because the corresponding control information of one type of Qos group, greatly reduce the existing quantity of control information transmission on the repeated link when with UE being the scheduling granularity, thereby reduced the time delay of control information transmission, improved the efficiency of transmission and the resource utilization of repeated link.
Description of drawings
Fig. 1 is existing nontransparent relay system structural representation;
Fig. 2 is the schematic flow sheet of repeated link transmitter side MAC layer multiplexing service data of the present invention and control information transmission;
Fig. 3 is the schematic flow sheet of repeated link transmitter side MAC layer transmitting scheduling information of the present invention;
Fig. 4 is the schematic flow sheet of repeated link transmitter side MAC layer service data transmission of the present invention;
Fig. 5 is the schematic flow sheet of repeated link receiver side MAC layer service data transmission of the present invention;
Fig. 6 is the handling process sketch map of repeated link receiver side MAC layer of the present invention to feedback information;
Fig. 7 is the structural representation of dispatch request information of the present invention;
Fig. 8 is the structural representation of downlink service data feedback information of the present invention;
Fig. 9 is the structural representation of schedule information of the present invention;
Figure 10 is the structural representation of uplink business data feedback information of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is made further detailed description below.
In the practical application, business datum is service quality (Qos, Quality of Service) end to end, can be divided into Qos and the Qos on the repeated link on the access link, and the present invention relates generally to the Qos on the repeated link.On repeated link; Current stop receives business datum and control information; After according to control information business datum being handled; Again according to the resource management capacity of current stop, generate control information and be sent to higher level's website or subordinate's website of current stop, realize the transmission of up-downgoing business datum.Because the transmission quality of each subcarrier of transmission information is different; For example, in OFDM (OFDMA, Orthogonal Frequency Division Multiple Access) system; The frequency selective fading of each subcarrier is different; Thereby, for the transmission quality of different sub carrier, different to the assurance meeting of the Qos of business datum; But for same subcarrier; Its assurance to the Qos of business datum is identical, and promptly the requirement to time delay and indexs such as FER is consistent, thereby; For having a plurality of up-downgoing business datum control information corresponding that identical Qos requires, the content of its control information all is identical.
The method of distributed relay provided by the invention system distributed relay system transmissions control information is considered the business datum control information corresponding with a plurality of UE that identical Qos requires, and the content of its control information all is identical characteristic.Thereby, in the present invention, the media interviews of repeated link website control (MAC; Medium Access Control) layer requires to carry out the Qos group categories with the business datum that receives according to different Qos; Control respectively to every type of Qos group business datum, for the business datum of same item Qos group, its corresponding control information; Use identical modulating-coding format set (MCS, Modulation and Coding Scheme) that control information is modulated, encoded; For the business datum of inhomogeneity Qos group, corresponding Different control information is carried out the business datum control information corresponding of every type of Qos group multiplexing, and on identical Radio Resource, transmits simultaneously.
Because Qos requires different; Business datum to inhomogeneity Qos group; The content that control information comprises is also different; For example, the resource information of use, MCS information, mixing retransmit phase related control informations such as (HARQ, Hybrid Automatic Repeat Request) information and precoding information automatically.
Among the present invention, the control information of on repeated link, transmitting comprises: uplink control information and down link control information, wherein,
The up link control messages comprises again: subordinate's website sends to higher level's website, and for example, RS sends to the dispatch request information of BS and the feedback information of downlink service data.The feedback information of downlink service data comprises affirmation/non-affirmation (ACK/NACK) information and channel quality indication (CQI, Channel Quality Indicator) information of downlink service data etc.
Down link control information comprises again: higher level's website sends to subordinate's website, and for example, BS sends to the schedule information of RS and the feedback information of uplink business data.The feedback information of upstream data comprises the ACK/NACK information of uplink business data.
The MAC layer of BS and RS requires to distinguish according to Qos for the relevant information of dispatch request; Promptly original buffer status report (BSR for business datum or UE; Buffer State Report) information; Correspondence requires to carry out sorted Qos group according to Qos, and RS reports BS with the BSR message transmission of the business datum of all kinds of Qos groups, is used for the scheduling of uplink business data; BS determines the scheduling of downlink service data according to the BSR information that receives.
For the CQI information of ACK/NACK information, down link and the corresponding HARQ process of business data transmission of Qos group, carry out according to all kinds of Qos groups, promptly feed back to the business datum of each type Qos group.
In the practical application, each type Qos group can be provided with a plurality of HARQ processes, is used to retransmit or the transmission of new business data.
In short, the method for distributed relay provided by the invention system distributed relay system transmissions control information is the control that granularity is carried out business datum on the repeated link with Qos, and the business datum of same type of Qos group is carried out multiplexing on repeated link; The corresponding control information of the business datum of same type of Qos group, inhomogeneity Qos group control information corresponding is carried out multiplexing on repeated link.
Because on repeated link, having introduced is the granularity of scheduling with Qos; Therefore on repeated link; The MAC layer of BS and RS is handled except having existing scheduling, HARQ and transformat and resource control (TFRC; Transport Format and Resource Control) beyond the function, also need increase the multiplexing process function that business datum is required to carry out the division of Qos group, Qos group business datum and control information according to Qos.
Fig. 2 is the schematic flow sheet of repeated link transmitter side MAC layer multiplexing service data of the present invention and control information transmission, and referring to Fig. 2, this flow process comprises:
In this step; The MAC layer receives the business datum of rlc layer; If confirming business datum is to send to the UE that self links to each other,, and this control information and business datum are sent to UE after physical layer process for the business datum that is sent to this UE generates control information; Its flow process is a prior art, repeats no more at this.If confirm that business datum need be sent to subordinate or higher level's website, the MAC layer is determined the affiliated Qos group of traffic data type and business datum according to the numbering of the logic channel that receives business datum; For example; Speech business data and downloading service class data are dissimilar business datums, and the numbering of the logic channel of its reception is different, and both belong to inhomogeneous Qos group; The speech business data belong to the Qos group of voice class, and downloading service class data belong to the Qos group of downloading class.After the Qos group of determining under traffic data type and the business datum, according to the Qos requirement of business datum, the business datum that identical Qos is required is combined as one type of Qos group, and upgrades the BSR information of this Qos group.
Step 202 is for all kinds of Qos groups are carried out resource allocation;
In this step, the MAC layer is according to the precedence information of BSR information with this Qos group of Qos group, the Qos type of selection scheduling; Simultaneously; Situation according to available radio resources and physical control channel; Be all kinds of Qos set of dispense resources: distributing radio resource, confirm its modulation coding mode, and antenna multiplexed mode; Thereby determine the data volume of the business datum of the Qos group that needs scheduling, will generate control information with this in follow-up.
Step 203 is carried out similar Qos group business datum multiplexing;
In this step,,, confirm that such Qos organizes the data volume of each UE of the scheduling that comprises in business datum, and carry out the business datum of each UE multiplexing according to the priority of the UE that comprises in this Qos group for similar Qos group business datum.
Step 204 is confirmed the HARQ process that every type of Qos group is transmitted;
In this step, every type of Qos organizes corresponding a plurality of HARQ processes of possibility, need be the HARQ process that every type of Qos group is confirmed transmission.
In this step; Scheduling situation according to every type of Qos group; Form control information; The corresponding one type of Qos group of each control information is carried on physical control channel with all kinds of Qos group control information corresponding after multiplexing and sends to subordinate's website or higher level's website, sends to physical layer simultaneously with the control physical layer process.
The scheduling situation comprise every type of Qos group business datum of scheduling data volume, carry the physical resource of such Qos group business datum, for example, physical resource such as subcarrier, time slot and the modulating-coding speed used etc.
About the control information form that generates, specifically describe again in follow-up.
Step 206 is sent to physical layer with multiplexing business datum and carries out physical layer process.
In this step, the business datum that all kinds of Qos after multiplexing are organized sends to physical layer, accomplishes corresponding the processing by physical layer, comprises chnnel coding, modulation and physical channel mapping.The concrete coded system of using of physical layer, modulation type, physical channel are handled by the mode of confirming in the step 202, and the information that promptly comprises according to the control information that receives from physical layer is handled.The processing and the existing procedure of physical layer are similar, repeat no more at this.
In the practical application, above-mentioned MAC layer also can carry out respectively the processing and the control information transmission of business datum.Below with transmitter side MAC layer transmitting scheduling information and to transmit multiplexing business datum be that example describes.
Under the distributed scheduling mode; The resource allocation of uplink business data transmission is controlled by higher level's website; Subordinate's website sends dispatch request information and gives higher level's website; Higher level's website is according to the BSR information in the dispatch request information, and the information such as uplink wireless channel quality that detect, and confirms the resource that uplink business data uses.Higher level's website is identical with dispatch request information to the schedule information that subordinate's website sends, and different is that the BSR information that schedule information comprises is reported by subordinate's website.
Fig. 3 in the scheduling of each internal trigger dispatching cycle user service data, produces schedule information for the schematic flow sheet of repeated link transmitter side MAC layer transmitting scheduling information of the present invention simultaneously, and referring to Fig. 3, this flow process comprises:
Step 302 according to the Qos requirement of business datum, is confirmed the priority of all kinds of Qos groups;
Step 303 confirms that multiplexing similar Qos organizes the data volume of business datum;
In this step, according to the precedence information of the BSR information and all kinds of Qos group of all kinds of Qos group, the Qos type of selection scheduling; Simultaneously; Situation according to present available radio resources and physical control channel; Be respectively all kinds of Qos group selection corresponding radio resource, and confirm the modulation coding mode and the antenna multiplexed mode of all kinds of Qos groups respectively, thereby determine the business datum amount of all kinds of Qos group schedulings.
Step 304 is respectively the HARQ process that all kinds of Qos groups are confirmed transmission;
In this step, every type of Qos organizes corresponding a plurality of HARQ processes of possibility, and therefore, the MAC layer need be respectively every type of definite HARQ process of transmitting of Qos group in all kinds of Qos groups.
In this step, the MAC layer is according to the scheduling situation of every type of Qos, generates schedule information, and schedule information is carried on physical control channel after multiplexing sends to subordinate's website or higher level's website, sends to physical layer simultaneously.
Fig. 4 is the schematic flow sheet of repeated link transmitter side MAC layer service data transmission of the present invention, and referring to Fig. 4, this flow process comprises:
Step 402 is upgraded the BSR information that Qos organizes;
In this step, the MAC layer is determined the affiliated Qos group of traffic data type and business datum according to the numbering of the logic channel that receives business datum, and the business datum that identical Qos is required is combined as one type of Qos group, and upgrades the BSR information of this Qos group.
Step 403 is carried out the business datum of the similar Qos group of dispatching multiplexing;
In this step,, confirm each UE is included in the data volume of the business datum that need dispatch in such Qos group, and carry out the business datum of each UE multiplexing according to schedule information.
Step 404 sends to physical layer with multiplexing business datum and handles.
In this step, multiplexing business datum is sent to physical layer, accomplish corresponding the processing, comprise chnnel coding, modulation and physical channel mapping by physical layer.
For the receiver side on the repeated link, corresponding with the transmitter side on the repeated link, receiver side receive information and handle after be sent to transmitter side.CRC (the CRC that receiver side MAC layer comprises according to the Qos group business datum that receives; Cyclic Redundancy Check) object information; The Qos group business datum of confirming to receive is correct, the Qos group business datum that receives is carried out send to rlc layer after the processing such as demultiplexing; The affirmation feedback information that forms Qos group business datum is sent to the MAC layer of transmitter side, simultaneously the non-affirmation feedback information of the Qos group business datum that forms is sent to the MAC layer of transmitter side; In the practical application, affirmation feedback information that the MAC layer of receiver side can also be corresponding with every type of Qos group business datum or non-affirmation feedback information carry out being sent to after multiplexing the MAC layer of transmitter side.
Fig. 5 is the schematic flow sheet of repeated link receiver side MAC layer service data transmission of the present invention, and referring to Fig. 5, this flow process comprises:
Step 501 receives the business datum of carrying CRC (CRC, CyclicRedundancy Check) check results information from physical layer;
Step 502 confirms according to the CRC check object information whether the business datum that receives is correct;
In this step, the MAC layer receives the business datum of carrying the CRC check object information from physical layer, confirms according to the CRC check object information that comprises whether the business datum that receives is correct; If it is correct to confirm that business datum receives; Execution in step 502, otherwise, this flow process finished.
Step 503 is carried out demultiplexing to the business datum that receives, and recovers Medium Access Control (MAC) Protocol Data Unit (PDU, the Protocol Data Unit) business datum of single UE;
In this step, the business datum that receives is carried out demultiplexing, revert to the MAC PDU business datum of each UE.
Step 504 reverts to RLC PDU business datum with MAC PDU business datum, sends to rlc layer.
Fig. 6 is the handling process sketch map of repeated link receiver side MAC layer of the present invention to feedback information, and referring to Fig. 6, this flow process comprises:
Step 601 receives the Qos group business datum of carrying the CRC check object information from physical layer;
Step 602 confirms whether the Qos group business datum that receives is correct;
In this step; The MAC layer receives the Qos group business datum of carrying the CRC check object information from physical layer; Confirm according to the CRC check object information that comprises whether the Qos group business datum that receives is correct, if it is correct to confirm that Qos group business datum receives, execution in step 603; Otherwise, execution in step 604.
In this step, the Qos group business datum that receives is carried out demultiplexing, and form the ACK feedback information, be sent to transmitter side; Also can the corresponding ACK feedback information of every type of Qos group business datum be carried out being sent to after multiplexing the MAC layer of transmitter side.
Below the multiplexed format of the control information that the present invention relates to is described.
(1) dispatch request information
RS sends UE dispatch request information to BS, and the information such as BSR of UE are provided, and is used for BS and carries out the scheduling decision use.
In the present embodiment, dispatch request information is granularity with the Qos type, and RS organizes according to all kinds of Qos, and corresponding dispatch request information is sent to BS, and the dispatch request information of a plurality of Qos groups is carried out multiplexing transmission.
Fig. 7 is the structural representation of dispatch request information of the present invention, and as shown in Figure 7, this dispatch request information comprises: Qos group quantity N, Qos group id (Qos ID) and the dispatch request information content (SR, Scheduling Request), wherein,
Qos organizes quantity N, identifies the quantity of the Qos group that comprises in this dispatch request information, and N is a natural number;
The Qos group id identifies the ID of each Qos group, for example, Qos1ID, Qos2ID ..., QosnID, n=N;
The dispatch request information content is the corresponding dispatch request relevant information of each Qos group, like buffer state etc., for example, Qos1SR, Qos2SR ..., Qosn SR, n=N.
In the practical application, business datum form and the dispatch request information of multiplexing UE are similar, repeat no more at this.
(2) downlink data feedback information
On the R-Link down direction, BS can send the business datum of a plurality of UE and give RS, so RS also need be with the feedback information of the business datum of a plurality of UE, and for example, ACK/NACK and CQI information send to BS.
Fig. 8 is the structural representation of downlink service data feedback information of the present invention, and as shown in Figure 8, this downlink service data feedback information comprises: CQI feedback information, Qos group process number N, Qos group process ID and Qos group progress feedback (FeedBack) information, wherein,
The CQI feedback information is used to feed back the channel quality on the repeated link;
Qos group process number N is used to identify the process number of the Qos group that this downlink service data feedback information comprises, and N is a natural number;
Qos organizes process ID, is used to identify the ID of the corresponding HARQ process of each Qos group
Qos group progress feedback information is used to identify the feedback information of the downlink service data of each HARQ process, for example, and ACK/NACK information.
(3) schedule information
Fig. 9 is the structural representation of schedule information of the present invention, and as shown in Figure 9, this schedule information comprises: and Qos group quantity N, Qos group id (Qos ID) and schedule information content (SI, SchedulingInformation), wherein,
Qos organizes quantity N, identifies the quantity of the Qos group that comprises in this schedule information, and N is a natural number;
The Qos group id identifies the ID of each Qos group, for example, Qos1ID, Qos2ID ..., QosnID, n=N;
The schedule information content is the corresponding scheduling relevant information of each Qos group, comprising: wireless bandwidth resource, modulation coding mode, HARQ relevant information, precoding relevant information etc., for example, Qos1SI, Qos2SI ..., Qosn SI, n=N.
(4) uplink business data feedback information
Figure 10 is for the structural representation of uplink business data feedback information of the present invention, and is shown in figure 10, with the structure similar of Fig. 8; Repeat no more at this, different with Fig. 8 is that this uplink business data feedback information does not comprise CQI information; And Qos group progress feedback information; Be used to identify the feedback information of the uplink business data of each HARQ process, for example, ACK/NACK information.
On repeated link, consider backwards compatibility to LTE, transmit above four information; Be dispatch request information, downlink service data feedback information, schedule information and uplink business data feedback information; Can continue to use the physical control channel among the LTE, specifically
Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) is used to carry dispatch request information and the downlink service data feedback information (ACK/NACK information and CQI information) that subordinate's website sends to higher level's website;
Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) is used to carry the schedule information (up/descending) that higher level's website sends to subordinate's website;
Physical mixed automatic re-transmission indicating channel (PHICH, Physical Hybrid Automatic RepeatRequest Indicator Channel) is used to carry upstream data feedback information (ACK/NACK information).
Visible by the foregoing description, the method for a kind of distributed relay provided by the invention system distributed relay system transmissions control information is on repeated link; The MAC layer is according to the Qos requirement of business datum; The business datum of a plurality of UE that identical Qos is required is multiplexed with one type of Qos group, for the business datum of same item Qos group, its corresponding same control information; Business datum for inhomogeneity Qos group; Corresponding Different control information, and the business datum control information corresponding of every type of Qos group is carried out multiplexing back pass through the physical control channel transmission, can be according to business datum in the Qos of repeated link requirement; The business datum of flexmux repeated link and corresponding control information have guaranteed the Qos of business datum at repeated link; Simultaneously; Because one type of corresponding control information of Qos group; Greatly reduce the existing quantity of control information transmission on the repeated link when with UE being the scheduling granularity, avoided the scheduling relevant information of the business datum that the identical Qos of transmission requires on repeated link, also reduced feedback quantity accordingly; Thereby reduced the time delay that control information is transmitted, improved real-time, the efficiency of transmission that has improved repeated link and the resource utilization of control information transmission; Further, all kinds of Qos group control information corresponding are carried out multiplexing, reduced the physical layer process that physical layer is carried out every type of Qos group control information corresponding, practiced thrift the resource of physical layer; And, use the physical control channel identical to transmit with LTE, guaranteed backwards compatibility to LTE.
More than lift preferred embodiment; The object of the invention, technical scheme and advantage have been carried out further explain, and institute it should be understood that the above is merely preferred embodiment of the present invention; Not in order to restriction the present invention; All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. the method for distributed relay system transmissions control information is characterized in that, this method may further comprise the steps:
Media interviews controls (MAC) layer of repeated link transmitter side receives the business datum from Radio Link control (RLC) layer; If confirm that business datum is not for belonging to the business datum of the subscriber equipment (UE) that self links to each other; Service quality (Qos) according to business datum requires the business datum that receives is carried out the Qos group categories; Said Qos according to business datum requires that the business datum that receives is carried out the Qos group categories and specifically comprises: the MAC layer is according to the numbering of the logic channel that receives business datum; After determining the affiliated Qos group of traffic data type and business datum; According to the Qos requirement of business datum, the business datum that identical Qos is required is combined as one type of Qos group, and upgrades buffer status report (BSR) information of this Qos group;
For organizing to dispatch and generate said every type of Qos according to the scheduling situation that every type of Qos organizes, all kinds of Qos organize control information corresponding; The said scheduling specifically for all kinds of Qos groups comprises: the MAC layer is according to the precedence information of BSR information with this Qos group of Qos group; The Qos type of selection scheduling; And, be all kinds of Qos set of dispense resources according to the situation of available radio resources and physical control channel; According to the priority of the UE that comprises in one type of Qos group, the data volume of each UE of the scheduling of confirming to comprise in the business datum of such Qos group, and carry out the business datum of each UE multiplexing; The mixing of confirming the transmission of every type of Qos group retransmits (HARQ) process automatically;
With said control information multiplexing back transmission.
2. the method for claim 1 is characterized in that, media interviews controls (MAC) layer of said repeated link transmitter side further comprises before receiving the step from the business datum of Radio Link control (RLC) layer:
The MAC layer of repeated link receiver side receives the Qos group business datum from CRC (CRC) the check results information of carrying of physical layer;
Confirm that according to the CRC check object information Qos group business datum that receives is correct, the Qos group business datum of said reception is carried out demultiplexing, recover Medium Access Control (MAC) Protocol Data Unit (PDU) business datum of single UE;
MAC PDU business datum is reverted to RLC PDU business datum, send to rlc layer.
3. method as claimed in claim 2 is characterized in that, the said Qos group business datum of confirming to receive according to the CRC check object information correctly further comprises:
If confirm that the Qos group business datum that receives is correct, form the MAC layer of confirming feedback information and being sent to transmitter side to receiving correct Qos group business datum;
If the Qos that confirms to receive group business datum mistake generates non-affirmation feedback information and is sent to the MAC layer of transmitter side, and waits for the re-transmission of the Qos group business datum of said mistake.
4. method as claimed in claim 3 is characterized in that, saidly forms and confirms that feedback information further comprises receiving correct Qos group business datum: carry out every type of corresponding affirmation feedback information of Qos group business datum multiplexing.
5. the method for claim 1 is characterized in that, further comprises: the business datum of the group of all kinds of Qos after multiplexing is sent to physical layer carry out chnnel coding, modulation and physical channel mapping back and send.
6. the method for claim 1 is characterized in that, said scheduling situation comprises: the data volume of every type of Qos group business datum, carry the physical resource and the modulating-coding speed of such Qos group business datum.
7. method as claimed in claim 4 is characterized in that, said control information comprises: uplink control information and down link control information.
8. method as claimed in claim 7 is characterized in that, said uplink control information comprises: dispatch request information and downlink service data feedback information.
9. method as claimed in claim 8 is characterized in that, said dispatch request information comprises: the Qos group quantity, each Qos group id and each the Qos group scheduling requested content that comprise in the dispatch request information.
10. method as claimed in claim 8 is characterized in that, said downlink service data feedback information comprises: channel quality indication feedback information, Qos group process number, Qos group process identification (PID) and Qos group progress feedback information.
11. method as claimed in claim 8 is characterized in that, transmits said uplink control information through Physical Uplink Control Channel.
12. method as claimed in claim 7 is characterized in that, said down link control information comprises: the feedback information of schedule information and uplink business data.
13. method as claimed in claim 12 is characterized in that, said schedule information comprises: Qos organizes quantity, each Qos group id and each Qos group scheduling information content.
14. method as claimed in claim 12 is characterized in that, said uplink business data feedback information comprises: Qos group process number, Qos group process identification (PID) and Qos group progress feedback information.
15. method as claimed in claim 12 is characterized in that, transmits said schedule information through Physical Downlink Control Channel, transmits the feedback information of said uplink business data through the physical mixed automatic re-transmission indicating channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102250415A CN101729122B (en) | 2008-10-24 | 2008-10-24 | Method for transmitting control information by distributed relay system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102250415A CN101729122B (en) | 2008-10-24 | 2008-10-24 | Method for transmitting control information by distributed relay system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101729122A CN101729122A (en) | 2010-06-09 |
| CN101729122B true CN101729122B (en) | 2012-07-25 |
Family
ID=42449441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102250415A Expired - Fee Related CN101729122B (en) | 2008-10-24 | 2008-10-24 | Method for transmitting control information by distributed relay system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101729122B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686692A (en) * | 2012-09-24 | 2014-03-26 | 华为技术有限公司 | Data transmission method and system, and macro base station, small base station and user equipment |
| CN103875192B (en) * | 2012-10-12 | 2018-08-14 | 华为技术有限公司 | The transmission method and device of HARQ feedback |
| US10292191B2 (en) * | 2014-03-25 | 2019-05-14 | Futurewei Technologies, Inc. | Systems and methods for control plane for D2D communications |
| TWI715044B (en) * | 2018-05-22 | 2021-01-01 | 新加坡商 聯發科技（新加坡）私人有限公司 | Method and apparatus for reporting hybrid automatic repeat request-acknowledgement information for different service types in mobile communications |
| CN111865521B (en) * | 2019-04-29 | 2021-12-10 | 大唐移动通信设备有限公司 | Data transmission method in relay network and network side equipment |
| CN117596689B (en) * | 2024-01-19 | 2024-03-19 | 为准（北京）电子科技有限公司 | Method and apparatus for transmitting uplink control information in wireless communication system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141172A (en) * | 2006-09-07 | 2008-03-12 | 华为技术有限公司 | Transmission method and transmission system of wireless relay system |
| CN101286949A (en) * | 2008-06-06 | 2008-10-15 | 北京交通大学 | Wireless Mesh network MAC layer resource scheduling policy based on IEEE802.16d standard |
-
2008
- 2008-10-24 CN CN2008102250415A patent/CN101729122B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141172A (en) * | 2006-09-07 | 2008-03-12 | 华为技术有限公司 | Transmission method and transmission system of wireless relay system |
| CN101286949A (en) * | 2008-06-06 | 2008-10-15 | 北京交通大学 | Wireless Mesh network MAC layer resource scheduling policy based on IEEE802.16d standard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101729122A (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102595599B (en) | Method, base station and system for scheduling evolution base station in long-term evolution system | |
| CN101345608B (en) | Method and apparatus for managing multi-carrier TDD ascending HARQ course | |
| CN103036660B (en) | A kind of method of feedback data acceptance state | |
| CN101350708B (en) | Mixing automatic re-transmission method and apparatus for multi-carrier high speed up packet access | |
| CN101636961B (en) | (H)ARQ method for semi-persistent scheduling, base station and user device | |
| CN104303578B (en) | Data transmission processing method, device and system | |
| CN100486252C (en) | Data parallel dispatch system and method for supporting high-speed down group access with multiple carrier wave | |
| CN103024905B (en) | A kind of subframe matching method and device | |
| CN103001749B (en) | Transmit the method for data, internet of things equipment and network equipment | |
| CN101924624B (en) | The sending method of correct and wrong answer physically on row control channel and terminal | |
| CN102307082B (en) | Transmission method and device of uplink control signaling | |
| CN102469596A (en) | ACK/NACK channel resource distributing method capable of supporting channel selection | |
| CN108418659A (en) | A kind of data transmission method, device and relevant device | |
| CN105210320A (en) | Communication system | |
| CN102047603A (en) | Method and arrangements in a telecommunications system | |
| CN105940620A (en) | Uplink control information transmission method and apparatus for use in cellular mobile communication system | |
| CN101873706A (en) | Method for feeding back identified/unidentified message in multi-carrier system | |
| CN101690276A (en) | Base station device and communication control method | |
| CN101375623A (en) | Communication system, communication device, communication method, and program | |
| CN103199961A (en) | Method adopting transmission diversity technique to transmit HARQ-ACK information | |
| CN103825671B (en) | Transmitting uplink data in tdd systems and method of reseptance and equipment | |
| CN101729122B (en) | Method for transmitting control information by distributed relay system | |
| CN102387598A (en) | Method for scheduling physical downlink control channel (PDCCH) | |
| CN101867467A (en) | Method and device for feeding back hybrid automatic repeat request (HARQ) acknowledgement message in carrier aggregation system | |
| CN102238624A (en) | Method for obtaining uplink data receiving condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA POTEVIO CO., LTD. Free format text: FORMER OWNER: PUTIAN IT TECH INST CO., LTD. Effective date: 20130923 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130923 Address after: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee after: CHINA POTEVIO CO.,LTD. Address before: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee before: PETEVIO INSTITUTE OF TECHNOLOGY Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: PUTIAN IT TECH INST CO., LTD. Free format text: FORMER OWNER: CHINA POTEVIO CO., LTD. Effective date: 20131129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131129 Address after: 100080 Beijing, Haidian, North Street, No. two, No. 6, No. Patentee after: PETEVIO INSTITUTE OF TECHNOLOGY Co.,Ltd. Address before: 100080, No. two, 2 street, Zhongguancun science and Technology Park, Beijing, Haidian District Patentee before: CHINA POTEVIO CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20211024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |