CN101771939B - Method and device for sending control information of unicast service - Google Patents
Method and device for sending control information of unicast service Download PDFInfo
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- CN101771939B CN101771939B CN200810187953.8A CN200810187953A CN101771939B CN 101771939 B CN101771939 B CN 101771939B CN 200810187953 A CN200810187953 A CN 200810187953A CN 101771939 B CN101771939 B CN 101771939B
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Abstract
The invention discloses a method and a device for sending the control information of a unicast service. In a sent downlink radio frame containing multi-multicast service, by carrying the control information of the unicast service in a radio frame of the unicast service and (or) by carrying out frequency division multiplexing on the control information of the unicast service and the multicast service as well as the control information in a subframe of the multicast service, the control information is sent. With the assistance of the device and the method, by allocating resources for the control information of the unicast service according to the FDM mode in the radio subframe containing the multi-MBS service, problems that the HARQ operation and the timely transmission of real-time service, and the like of the unicast service can be hindered when the MBS service and the unicast service share a carrier wave are solved; the highly efficient transmission of the MBS service is guaranteed, and meanwhile, the control information of the unicast service is provided with the timely transmission chance, thereby reducing transmission delay and meeting the QoS requirement of the unicast service.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of sending method and device of control information of unicast service.
Background technology
Multimedia Broadcast Multicast Service (Multicast Broadcast Service, referred to as MBS) is a kind of technology of data that transmits from a data source to a plurality of targets.By means of this technology, can realize sharing of network (comprising core net and Access Network) resource, thereby improve the utilance of Internet resources (especially air interface resource).
Development along with the universal and multimedia technology of the Internet, the application of multimedia shared service is more and more wider, the data volume of business transmission is simultaneously also in continuous increase, and how carrying out efficiently multicast and broadcast traffic transmissions is a research emphasis of next generation mobile communication system.
The transmission means of Multimedia Broadcast Multicast Service can be divided into single community and many cell transmission mode.Under single cell transmission mode, be called single community MBS (Single-BS MBS), each base station is respectively MBS business scheduling resource and sends, and many cell transmission mode, be called many communities MBS (Multi-BS MBS), be by a plurality of base stations, on same running time-frequency resource, to send identical MBS business information, thereby obtain many communities macro diversity.
Following wireless communication system can be multicarrier system, it can provide larger bandwidth, the mode of carrying many communities MBS business can be for Independent Carrier Wave or special carrier mode, and when carrying, MBS business can be monopolized all running time-frequency resources on certain carrier wave; Another kind of mode is mixed carrier or shared carrier system, and now MBS business can be shared the running time-frequency resource on carrier wave with unicast service.
Bearing mode for mixed carrier, propose at present MBS business and unicast service and adopted time division multiplexing (Time Division Multiplex, referred to as TDM) mode, according to the demand of MBS business, be that MBS business is distributed one or more sub-frame resources in a radio frames, MBS business exclusively enjoys the running time-frequency resource in these subframes.Under this time-multiplexed mode, MBS business can take the whole running time-frequency resource in several subframes in some radio frames, will exert an influence to unicast service like this.
For example, for uplink synchronous, retransmit and (also can be described as mixed automatic retransfer request (HybridAutomatic Repeat reQuest, referred to as HARQ)) confirmation in process (also can be called correct response message/wrong responses information (Acknowledge/NegativeAcknowledge, referred to as ACK/NACK)) feedback, because MBS has taken alone resource, therefore confirmation just need to be postponed till in next radio frames and feed back, thereby cause the operation time delay of uplink synchronous HARQ, and can make the operation of synchronous HARQ more complicated.
For the uplink service of some semi-persistent schedulings, the delay of feedback of its HARQ ACK/NACK will cause preallocated re-transmission resource to redistribute, and therefore, when MBS business and unicast service time division multiplexing, can affect the transmission of the control information of unicast service.
In addition, MBS business also can adopt and mix time-division/frequency division multiplexing (Frequency Division Multiplex with unicast service, referred to as FDM) mode of (Hybrid TDM/FDM), in this manner, can be that MBS business is distributed one or more sub-frame resources in a radio frames according to the demand of MBS business, meanwhile, unicast service can be shared running time-frequency resource with MBS business in this MBS subframe.Under the mode of this mixing time-division/frequency division multiplexing, unicast service can take a part of resource in MBS subframe, and control information and business datum that can unicast traffic.
Yet, to how sending clean culture control information in the situation of unicast service and the shared sub-frame resources of MBS business, effective solution is not proposed at present.
From above-mentioned analysis, can find out, due to MBS business and the shared carrier wave of unicast service, can affect the timely transmission of unicast service HARQ operation, real time business, and can increase the complexity that terminal receives unicast service.
Yet, for above-mentioned MBS business and unicast service, share the problem that carrier wave can hinder the timely transmission of unicast service HARQ operation, real time business at present, effective solution is not yet proposed at present.
Summary of the invention
Consider correlation technique Zhong Duo community MBS business and unicast service share carrier wave can hinder unicast service HARQ operation, real time business timely transmission problem and make the present invention, for this reason, main purpose of the present invention is to provide a kind of sending method and device of control information of unicast service.
According to an aspect of the present invention, provide a kind of sending method of control information of unicast service, for the control information in many cell multicast services and unicast service unicast traffic during with time-multiplexed mode shared resource.
According to the sending method of control information of unicast service of the present invention, comprise: in the downlink radio frame that contains many cell multicast services sending, by the control information of unicast service being carried in the subframe of unicast service and/or by the control information of unicast service is carried out to the transmission that frequency division multiplexing carries out control information with multicast service and control information in the subframe of multicast service.
The method can further comprise: according to the predetermined transmission position of the control information of unicast service, carry out the transmission of control information in downlink radio frame.
Wherein, the predetermined position that sends can comprise: the first descending sub frame of radio frames, and take other descending sub frame that N subframe be interval, the value of N comprises: 1,2,3,4.
Preferably, in the subframe of multicast service the control information of multiplexing unicast service can comprise following one of at least: the confirmation of mixed automatic retransfer request, ascending resource mandate/assignment information, information in uplink mode, uplink power control information.
Preferably, the elementary cell of the control information of the unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing unicast service shared number of subcarriers and unicast service on frequency domain in the subframe of multicast service is identical, the shared OFDM symbol numbers of control information of the unicast service carrying in the subframe of shared orthogonal frequency division multiplex OFDM symbol numbers and unicast service in time domain is identical or different, takes the OFDM symbol numbers of place subframe.
Preferably, in unicast service subframe, in the Cyclic Prefix of OFDM symbol and multicast service subframe, the Cyclic Prefix of OFDM symbol is identical or different, and the Cyclic Prefix of the OFDM symbol of the control information of the unicast service of frequency division multiplexing in the subframe of multicast service is identical with the Cyclic Prefix of the OFDM symbol of multicast service.
Preferably, the control information of unicast service comprises user proprietary control information and non-user proprietary control information.
According to a further aspect in the invention, provide a kind of sending method of control information of unicast service, for the control information in multicast service and unicast service unicast traffic during with the hybrid mode shared resource of time division multiplexing and frequency division multiplexing.
According to the sending method of control information of unicast service of the present invention, comprise: in the downlink radio frame that contains many cell multicast services sending, by the control information of unicast service being carried in the subframe of unicast service and/or by the data of the control information of unicast service and unicast service are carried out to the transmission that frequency division multiplexing carries out control information with multicast service and control information in the lump in the subframe of multicast service.
The method can further comprise: according to the predetermined transmission position of the control information of unicast service, carry out the transmission of control information in downlink radio frame.
Wherein, the predetermined position that sends comprises: the first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4; And the first descending multicast service subframe of radio frames, and take other subframe of multicast service in the radio frames that N subframe be interval, the value of N comprises 1 or 2.
Preferably, in the subframe of multicast service the control information of multiplexing unicast service comprise following one of at least: up/down row resource allocation information, up/down row transmission mode information, the confirmation of mixed automatic retransfer request, uplink power control information.
Preferably, the elementary cell of the control information of the unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing unicast service shared number of subcarriers and unicast service on frequency domain in the subframe of multicast service is identical, the shared OFDM symbol numbers of control information of the unicast service carrying in the subframe of shared OFDM symbol numbers and unicast service in time domain is identical or different, takes the OFDM symbol numbers of place subframe.
Preferably, in unicast service subframe, in the Cyclic Prefix of OFDM symbol and multicast service subframe, the Cyclic Prefix of OFDM symbol is identical or different, and the Cyclic Prefix of the OFDM symbol of the control information of the unicast service of frequency division multiplexing in the subframe of multicast service is identical with the Cyclic Prefix of the OFDM symbol of multicast service.
In addition multicast service subframe, is in the downlink radio frame that contains many cell multicast services, to be a last M continuous descending sub frame.
Preferably, the control information of unicast service comprises user proprietary control information and non-user proprietary control information.
In accordance with a further aspect of the present invention, provide a kind of sending method of control information of unicast service, for the control information in multicast service and unicast service unicast traffic during with time-multiplexed mode shared resource.
According to the sending method of control information of unicast service of the present invention, comprise: in the downlink radio frame that contains many cell multicast services sending, by only carry the control information of unicast service in the subframe of unicast service, carry out the transmission of control information.
Wherein, the predetermined position that sends comprises: the first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4.
According to a further aspect in the invention, provide a kind of dispensing device of control information of unicast service, for the control information in multicast service and unicast service unicast traffic during with time-multiplexed mode shared resource.
According to the dispensing device of control information of unicast service of the present invention, comprise: configuration module, is carried at the control information of unicast service in the subframe of unicast service for the downlink radio frame that contains many cell multicast services sending; Multiplexing module, for multi-service information carrying out frequency division multiplexing by the control information of unicast service in the subframe at multicast service in radio frames; Sending module, for sending the radio frames after configuration module and/or Multiplexing module are processed.
According to a further aspect in the invention, provide a kind of dispensing device of control information of unicast service, for the control information in multicast service and unicast service unicast traffic during with the hybrid mode shared resource of time division multiplexing and frequency division multiplexing.
According to the dispensing device of control information of unicast service of the present invention, comprise: configuration module, the downlink radio frame that contains many cell multicast services for sending, is carried at the control information of unicast service in the subframe of unicast service; Multiplexing module, for will carrying out frequency division multiplexing with multi-service information in the data of the control information of unicast service and the unicast service in the lump subframe at multicast service in radio frames; Sending module, for sending the radio frames after configuration module and/or Multiplexing module are processed.
According to a further aspect in the invention, provide a kind of dispensing device of control information of unicast service, for the control information in multicast service and unicast service unicast traffic during with time-multiplexed mode shared resource.
According to the dispensing device of control information of unicast service of the present invention, comprise: configuration module, for the downlink radio frame that contains many cell multicast services sending, the control information of only carrying unicast service in the subframe of unicast service; Sending module, for sending the radio frames after configuration module is processed.
By means of technique scheme of the present invention, by the control information Resources allocation that is unicast service according to the mode of FDM in the wireless sub-frame containing many communities MBS business, having solved in correlation technique MBS business and unicast service shares carrier wave and can hinder unicast service HARQ operation, the problem of the timely transmission of real time business etc., control information for unicast service in the high efficiency of transmission that guarantees MBS business provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the control information sending method of the inventive method embodiment mono-;
Fig. 2 is according to the schematic diagram of the structure example 1 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 3 is according to the schematic diagram of the structure example 2 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 4 is according to the schematic diagram of the structure example 3 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 5 is according to the schematic diagram of the structure example 4 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 6 is according to the schematic diagram of the structure example 5 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 7 is according to the schematic diagram of the structure example 6 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Fig. 8 is according to the block diagram of the control information dispensing device of apparatus of the present invention embodiment mono-;
Fig. 9 is according to the flow chart of the control information sending method of the inventive method embodiment bis-;
Figure 10 is according to the schematic diagram of the structure example 7 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 11 is according to the schematic diagram of the structure example 8 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 12 is according to the schematic diagram of the structure example 9 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 13 is according to the schematic diagram of the structure example 10 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 14 is according to the block diagram of the control information dispensing device of apparatus of the present invention embodiment bis-;
Figure 15 is according to the flow chart of the control information sending method of the inventive method embodiment tri-;
Figure 16 is according to the schematic diagram of the structure example 11 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 17 is according to the schematic diagram of the structure example 12 of the radio frames of the control information sending method transmission of the inventive method embodiment;
Figure 18 is according to the block diagram of the control information dispensing device of apparatus of the present invention embodiment tri-.
Embodiment
Functional overview
According to current definition, in following wireless communication system (for example, with OFDM (Orthogonal Frequency Division Multiplexing, referred to as OFDM) and OFDM access (Orthogonal Frequency Division MultipleAccess, referred to as OFDMA) technology is in basic wireless communication system), conventionally the resource area that Radio Resource is divided into different brackets is dispatched, for example, Radio Resource being divided into superframe, frame, subframe, symbol and subcarrier dispatches.
Particularly, first Radio Resource is divided into the superframe of Time Continuous, each superframe comprises a plurality of frames, each frame comprises again a plurality of subframes, subframe is comprised of the most basic OFDM symbol, each subframe will be divided into Resource Unit again on frequency domain on subcarrier, and the number of frame in superframe, subframe, OFDM symbol and the sub-carrier number on frequency domain are determined by the basic parameter of ofdm system.
As mentioned above, for clean culture He Duo community MBS business, can on a carrier wave, share running time-frequency resource.Unicast service He Duo community MBS business can adopt the mode of time-division multiplexing, also can adopt the mode of mixing time-division/frequency division multiplexing, unicast service He Duo community MBS business can adopt the Cyclic Prefix (Cyclic Prefix, referred to as CP) of identical or different length to meet the requirement of various application scenarioss simultaneously.
For correlation technique Zhong Duo community MBS business (for example, enhancement mode multi-broadcast service (Enhanced multicast broadcast service, referred to as E-MBS)) can hinder unicast service HARQ operation with the shared carrier wave of unicast service, the problem of the timely transmission of real time business, the present invention proposes the control information of unicast service (also be can be described as to unicast business control channel (Unicast Service Control Channel, referred to as USCCH), the non-user proprietary control information that comprises unicast service, and/or the user proprietary control information of unicast service) multiplexing with MBS business and control information in the subframe that contains many communities MBS business, the business datum of unicast service and control information are carried out multiplexing with the subframe of MBS business in the subframe that contains many communities MBS business, and the scheme of only carrying the control information of unicast service in the subframe of unicast service, the present invention can be in the wireless sub-frame that contains many communities MBS business, or the control information Resources allocation that is only unicast service according to the mode of FDM in the subframe of unicast service, guaranteed under the multiplex mode of different Duo community MBS business and unicast service, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Below in conjunction with accompanying drawing, describe the present invention in detail.
Embodiment of the method one
In the present embodiment, provide a kind of sending method of control information of unicast service, the control information of unicast traffic during with the mode shared resource of TDM for Duo community MBS business and unicast service.
Fig. 1 is according to the flow chart of the sending method of the control information of unicast service of the inventive method embodiment mono-, it should be noted that, the step of describing in following methods can be carried out in the computer system such as one group of computer executable instructions, and, although figure 1 illustrates logical order, but in some cases, can carry out shown or described step with the order being different from herein.As shown in Figure 1, the method comprises the following steps S102 and step S104.To describe in detail according to the sending method of the control information of unicast service of the present embodiment below.
In step S102, in the downlink radio frame that contains many communities MBS business sending, the control information of unicast service is carried in the subframe of unicast service and/or the control information of unicast service is carried out to frequency division multiplexing with MBS business and control information in the subframe of MBS business;
Step S104, the radio frames after processing in forwarding step S102, thereby the control information of unicast traffic.
In above-mentioned radio frames, MBS business takies the bandwidth resources on one or more descending sub frames, and this subframe can be described as MBS subframe, and unicast service takies clean culture subframe, i.e. bandwidth resources in non-MBS subframe.Wherein, the control information of unicast service can send on one or more descending sub frames, the control information of unicast service can in the subframe that contains MBS business, send and subframe corresponding to place on control information and the data message of MBS business carry out frequency division multiplexing.
Particularly, in step S102, need in downlink radio frame, carry out carrying of control information according to the predetermined transmission position of the control information of unicast service (or being called transmission rule).Wherein, the predetermined position that sends comprises: at the first descending sub frame of radio frames, and take N subframe as interval at other descending sub frame, the value of N comprises: 1,2,3,4, wherein, determine that being treated to of predetermined transmission position is added the subframe numbers of the control information of current unicast traffic and N, the subframe numbers of the control information using addition result as next unicast traffic.
For example, can send by following two kinds of modes:
(mode one) starts the control information of unicast traffic continuously on the descending sub frame of radio frames (concrete send mode as shown in Fig. 2,4,6, it is 1 situation that Fig. 2,4,6 shows N) from the first descending sub frame of radio frames;
(mode two) is in the control information of the first descending sub frame unicast traffic of radio frames, and take N subframe as interval at the control information of other descending sub frame unicast traffic (concrete send mode as shown in Fig. 3,5,7, the situation that N has been shown in Fig. 3,5,7 is 2).
Preferably, in order to guarantee can to send in time the higher data of requirement of real-time in unicast service, and can too much not take the subframe of MBS business, in the subframe of MBS business the control information of multiplexing unicast service comprise following one of at least: the confirmation of mixed automatic retransfer request, ascending resource mandate/assignment information, information in uplink mode, uplink power control information.
Alternatively, in above-mentioned processing, the elementary cell of the control information of the unicast service carrying in the subframe of the basic resource unit of control information of unicast service of carrying out frequency division multiplexing with the subframe of MBS business shared number of subcarriers and unicast service on frequency domain is identical, the shared OFDM symbol numbers of control information of the unicast service carrying in the subframe of shared OFDM (OFDM) symbol numbers and unicast service in time domain is identical or different, takes the OFDM symbol (also can think to take the number of the OFDM symbol of place subframe) of place subframe.
Alternatively, in unicast service subframe, in the Cyclic Prefix of OFDM symbol and multicast service subframe, the Cyclic Prefix of OFDM symbol is identical or different, and the Cyclic Prefix of the OFDM symbol of the control information of the unicast service of frequency division multiplexing in the subframe of multicast service is identical with the Cyclic Prefix of the OFDM symbol of multicast service.
Below in conjunction with accompanying drawing and instantiation, the invention will be further described, but not as a limitation of the invention.
In the downlink resource of ofdm system, a downlink radio frame is comprised of some subframes, and base station is according to the configuration of system descending subframe, the demand of unicast service and MBS business, by some sub-frame division for being exclusively used in multicast or part for MBS business.In relevant wireless technology, a radio frames consists of 8 subframes, and each subframe is generally comprised of 6 symbols, and special subframe can be comprised of 5 symbols or 7 symbols.For TDD system, be divided into descending and uplink frame; For FDD system, 8 subframes are all downlink or uplink frames.
While having abundant descending sub frame in a radio frames, can adopt TDM multiplex mode, be about to some subframes for MBS service-specific subframe, descending sub frame number in a radio frames is relatively less or adopt different CP mixed configuration to cause MBS business to take descending sub frame number when more, can adopt and mix TDM/FDM multiplex mode, in some subframes MBS business and unicast service with FDM multiplex mode shared resource, in the distributed subframe that contains MBS business, need to retain the control information that certain resource is unicast service transmitting portion, for example, the confirmation feedback information (ACK/NACK) of uplink synchronous HARQ, the resource allocation information of up real time business, uplink power control information, and transport format information etc., to reduce the impact on unicast service retransmission operation as far as possible, and the timely transmission of assurance to unicast service.
Based on this, will describe according to the processing example of the sending method of the control information of unicast service of the present embodiment below.
Example 1
As shown in Figure 2, in this example, many communities MBS business and unicast service a downlink radio frame according to the mode shared resource of TDM, and 5 downlink frame in a radio frames, have been configured, unicast service and MBS business (for example adopt identical CP, 1/8 CP), and unicast service distributed 3 descending sub frames, MBS traffic assignments descending last 2 subframes.The control information of unicast service (USCCH) sends in each subframe, wherein, in each subframe that contains MBS business, also send control information, the USCCH information sending on multicast subframe comprises confirmation feedback information ACK/NACK to uplink service, power control information, ascending resource authorization message etc.
Example 2
As shown in Figure 2, in this example, the resource distribution of descending sub frame is identical with example 1, and the control information of unicast service (USCCH) starts to send every a subframe from first descending sub frame, and sends USCCH in the subframe that in the end contains MBS business.
Example 3
As shown in Figure 4, in this example, many communities MBS business and unicast service a downlink radio frame according to the mode shared resource of TDM.Suppose in TDD system, in a radio frames, configured 5 downlink frame.Unicast service and MBS business adopt identical CP, as 1/8 CP; Unicast service has distributed 3 descending sub frames, MBS business is distributed on the 3rd and the 5th descending sub frame discontinuously, the control information of unicast service (USCCH) can send in each subframe, wherein, in each subframe that contains MBS business, also sends USCCH control information.
Example 4
As shown in Figure 5, basic identical with the resource distribution of example 3, multicast subframe has been distributed on the 2nd and the 3rd descending sub frame.The control information of unicast service (USCCH) is to start to send every a subframe from first descending sub frame, in this example, in the 3rd subframe that contains MBS business, has all sent control information (USCCH).
Example 5
As shown in Figure 6, in this example, many communities MBS business and unicast service a downlink radio frame according to the mode shared resource of TDM.Suppose in TDD system, in a radio frames, configured 5 downlink frame.Unicast service subframe and the subframe that contains MBS business adopt different CP, as the subframe of unicast service adopts 1/16 CP, containing clean culture in the subframe of MBS business and MBS business, all adopt 1/8 CP; Unicast service has distributed 3 descending sub frames, MBS traffic assignments descending last 2 subframes.The control information USCCH of unicast service sends in each subframe, wherein, in each subframe that contains MBS business, also sends USCCH control information.The USCCH information sending on multicast subframe comprises the confirmation feedback information ACK/NACK to uplink service, power control information, ascending resource authorization message etc.
Example 6
As shown in Figure 7, the resource distribution of this example is identical with example 6, and the control information USCCH of unicast service starts to send every a subframe from first descending sub frame.Totally three subframes that contain MBS business in this example therefore send control information (USCCH) in first and the 3rd subframe that contains MBS business.
By above-mentioned processing, can be in the situation that the multiplex mode of the employing TDM of MBS business and unicast service, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Device embodiment mono-
In the present embodiment, provide a kind of dispensing device of control information of unicast service, for the control information in MBS business and unicast service unicast traffic during with the mode shared resource of TDM.
As shown in Figure 8, according to the dispensing device of the control information of unicast service of the present embodiment, comprise configuration module 81, Multiplexing module 82 and sending module 83.
Multiplexing module 82 carries out frequency division multiplexing with MBS business and control information by the control information of unicast service for the radio frames containing many communities MBS business in the subframe of MBS business;
Sending module 83, is connected to configuration module 81 and Multiplexing module 82, for sending the radio frames after configuration module 81 and/or Multiplexing module 82 are processed.
This device can be according to the control information of the method unicast traffic shown in Fig. 1, and the radio frames of transmission can be equally also the radio frames shown in Fig. 2 to Fig. 7, but is not limited to this.
By this device, can Duo community MBS business and the situation of the multiplex mode of the employing TDM of unicast service under, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Embodiment of the method two
In the present embodiment, a kind of sending method of control information of unicast service is provided, hybrid mode shared resource for Duo community MBS business and unicast service with TDM and FDM (refers at a carrier frequency, in the radio frames that contains many communities MBS business, unicast service and multicast service carry out time-multiplexed mode between subframe, be divided into clean culture subframe and multicast (MBS) subframe, wherein, inner in MBS subframe, unicast service and multicast service can carry out the mode of frequency division multiplexing again) time unicast traffic control information.
As shown in Figure 9, according to the sending method of the control information of unicast service of the present embodiment, comprise step S902 and step S904.Processing shown in Fig. 9 will be described in detail below.
In step S902, in the downlink radio frame that contains many communities MBS business sending, the control information of unicast service is carried in the subframe of unicast service and/or the data of the control information of unicast service and unicast service are carried out to frequency division multiplexing with the subframe of MBS business and control information in the lump in MBS subframe;
In step S904, the radio frames after forwarding step S902 processes.
In above-mentioned processing, proprietary and/or the user proprietary control information (hereafter is control information) of the non-user of unicast service sends on one or more descending sub frames, wherein, the subframe that contains many communities MBS business is arranged in the last M of downlink radio frame continuous descending sub frame, USCCH in the subframe that contains many communities MBS business, send and subframe corresponding to place on unicast service data message and control and the data message of multicast service carry out frequency division multiplexing.
Wherein, when carrying out the transmission of control information, can in downlink radio frame, carry out carrying of control information according to the predetermined transmission position of the control information of unicast service (or being called transmission rule).Wherein, the predetermined position that sends comprises:
The first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4; Wherein, the mode of determining the unicast service subframe of the control information that transmits unicast service is: for the unicast service subframe of downlink radio frame, the subframe numbers of the unicast service of the control information of current unicast traffic and N are added to the subframe numbers of the control information using addition result as next unicast traffic.
And the first descending multicast service subframe of radio frames, and take other subframe of multicast service in the radio frames that N subframe be interval, the value of N comprises 1 or 2.Wherein, the mode of determining the multicast service subframe of the control information that transmits unicast service is: for the multicast service subframe of downlink radio frame, the subframe numbers of the multicast service of the control information of current unicast traffic and N are added to the subframe numbers of the control information using addition result as next unicast traffic.
For example, can adopt following send mode:
(mode one) starts on the descending sub frame of radio frames the control information of unicast traffic continuously and business datum (as Figure 10,12, showing N and be 1 situation) from the first descending sub frame of radio frames; (mode two) is in the control information of the first descending sub frame unicast traffic of radio frames, and take the control information of N subframe as interval unicast traffic in other descending clean culture subframe, and the control information in the first descending MBS service subframe unicast traffic of radio frames, and take the control information of N subframe unicast traffic in the multicast service subframe of interval in this radio frames, N value is 1 or 2.(as shown in Figure 11,13).
Wherein, in the subframe of MBS business, the control information of multiplexing unicast service can be identical with the information of unicast service subframe transmission in correlation technique, for example, can comprise following one of at least: the confirmation of up/down row resource allocation information, up/down row transmission mode information, mixed automatic retransfer request, uplink power control information etc.
Alternatively, the elementary cell of the control information of the unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing unicast service shared number of subcarriers and unicast service on frequency domain in the subframe of MBS business is identical, the shared OFDM symbol numbers of control information of the unicast service carrying in the subframe of shared OFDM (OFDM) symbol numbers and unicast service in time domain is identical or different, takes the OFDM symbol numbers of place subframe.
Alternatively, the circulation of the Cyclic Prefix of unicast service and MBS business is identical or different, identical with the Cyclic Prefix of MBS business with the Cyclic Prefix of control information of the unicast service of the subframe FDM of MBS business.
The sending method of the control information of unicast service of the present embodiment is described below in conjunction with instantiation.
Equally, identical to example 7 with example 1, in the downlink resource of ofdm system, a radio frames consists of 8 subframes, and each subframe is generally comprised of 6 symbols, and special subframe can be comprised of 5 symbols or 7 symbols.For TDD system, be divided into descending and uplink frame; For FDD system, 8 subframes are all downlink or uplink frames.
Example 7
As shown in figure 10, in this example, MBS business and unicast service a downlink radio frame according to the mode shared resource that mixes time-division/frequency division (Hybrid TDM/FDM).Suppose in TDD system, in a radio frames, configured 5 downlink frame.Unicast service and MBS business adopt identical CP, as 1/8 CP; Unicast service has distributed 3 descending sub frames, MBS traffic assignments descending last 2 subframes.The control information of unicast service (USCCH) sends in each subframe, wherein, in each subframe that contains MBS business, also sends control information.The USCCH information sending on multicast subframe comprises descending, ascending resource assignment information, transformat, the confirmation feedback information ACK/NACK to uplink service, uplink power control information etc.
Example 8
As shown in figure 11, in this example, identical with the resource distribution of example 7, the control information of unicast service (USCCH) starts to send every a subframe from first descending sub frame, until clean culture subframe finishes.The subframe that the control information of unicast service (USCCH) contains MBS business from first starts to send every subframe, totally two subframes that contain MBS business in this example, the therefore control information of unicast traffic in first MBS subframe.
Example 9
As shown in figure 12, in this example, MBS business and unicast service a downlink radio frame according to the mode shared resource that mixes time-division/frequency division (Hybrid TDM/FDM).Suppose in TDD system, in a radio frames, configured 5 downlink frame.Unicast service subframe and the subframe that contains MBS business adopt different CP, as the subframe of unicast service adopts 1/16 CP, containing clean culture in the subframe of MBS business and MBS business, all adopt 1/8 CP; Unicast service has distributed 2 descending sub frames, MBS traffic assignments descending last 3 subframes.The control information USCCH of unicast service sends in each subframe, wherein, in each subframe that contains MBS business, also sends USCCH control information.The USCCH information sending on multicast subframe comprises descending, ascending resource assignment information, transformat, the confirmation feedback information ACK/NACK to uplink service, uplink power control information etc.
Embodiment 10
As shown in figure 13, in this example, adopt the resource distribution identical with example 9, the control information of unicast service (USCCH) starts to send every a subframe from first descending sub frame, until clean culture subframe finishes.The subframe that the control information of unicast service (USCCH) contains MBS business from first starts to send every a subframe, totally three subframes that contain MBS business in this example, the therefore control information of unicast traffic in first and the 3rd subframe that contains MBS business.
By above-mentioned processing, can be in the situation that the employing TDM/FDM hybrid multiplex mode of MBS business and unicast service, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Device embodiment bis-
In the present embodiment, provide a kind of dispensing device of control information of unicast service, for the control information in MBS business and unicast service unicast traffic during with the mode shared resource of TDM.
As shown in figure 14, according to the dispensing device of the control information of unicast service of the present embodiment, comprise configuration module 141, Multiplexing module 142 and sending module 143.
The function of the module shown in Figure 14 will be described in detail below.
According to the device of the present embodiment, can carry out according to the method shown in Fig. 9 the transmission of control information, the radio frames of its transmission can be with reference to shown in Figure 10 to 13, but is not limited to this.
By this device, can Duo community MBS business and unicast service adopt in the situation of hybrid multiplex mode of TDM and FDM, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Embodiment of the method three
In the present embodiment, provide a kind of sending method of control information of unicast service, the control information of unicast traffic during with the mode shared resource of TDM for Duo community MBS business and unicast service.
As shown in figure 15, according to the sending method of the control information of unicast service of the present embodiment, comprise step S1502 and step S1504.
To the processing shown in Figure 15 be described below.
In step S1502, in the downlink radio frame that contains many communities MBS business sending, the control information of only carrying unicast service in the subframe of unicast service;
In step S1504, the control information configuring in forwarding step S1502.
Wherein, the control information of unicast service need to send in the predetermined transmission position of downlink radio frame.Particularly, the predetermined transmission position of the control information of unicast service comprises: the first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4.Wherein, the mode of determining the unicast service subframe of the control information that transmits unicast service is: for the unicast service subframe of downlink radio frame, the subframe numbers of the unicast service of the control information of current unicast traffic and N are added to the subframe numbers of the control information using addition result as next unicast traffic.
To describe in detail according to the embodiment of the control information transmission processing of the present embodiment below.
Equally, in the downlink resource of ofdm system, a radio frames consists of 8 subframes, and each subframe is generally comprised of 6 symbols, and special subframe can be comprised of 5 symbols or 7 symbols.For TDD system, be divided into descending and uplink frame; For FDD system, 8 subframes are all downlink or uplink frames.
Embodiment 11
As shown in figure 16, in this example, the control information of unicast service (USCCH), in the upper transmission of each descending clean culture subframe (that is, front 3 subframes), does not send control information in the subframe that contains MBS business.
Embodiment 12
As shown in figure 17, in this example, for unicast service subframe, the control information of unicast service (USCCH) starts to send every a subframe from first descending sub frame, in the subframe that contains MBS business, does not send control information.
By above-mentioned processing, can be in the situation that the multiplex mode of the employing TDM of MBS business and unicast service, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
Device embodiment tri-
In the present embodiment, provide a kind of dispensing device of control information of unicast service, the control information of unicast traffic during with the mode shared resource of TDM for Duo community MBS business and unicast service.
As shown in figure 18, according to the dispensing device of the control information of unicast service of the present embodiment, comprise configuration module 181 and sending module 182.
Sending module 182, for sending the radio frames after configuration module 181 is processed.
Thereby this device can adopt the processing shown in Figure 15 to carry out the transmission of the control information of unicast service equally, the radio frames of carrying this control information of its transmission can be with reference to shown in Figure 16 and 17, but is not limited to this.
By this device, can Duo community MBS business and the situation of the multiplex mode of the employing TDM of unicast service under, when providing resource for MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business.
In sum, by technical scheme of the present invention, in the wireless sub-frame that contains many communities MBS business, or the control information Resources allocation that is only unicast service according to the mode of FDM in the subframe of unicast service, solve the shared carrier wave of correlation technique Zhong Duo community MBS business and unicast service and can hinder unicast service HARQ operation, the problem of the timely transmission of real time business etc., guaranteed under the multiplex mode of different MBS business and unicast service, for MBS business, providing resource, when guaranteeing the high efficiency of transmission of MBS business, for the control information of unicast service provides transmission opportunity timely, to the stronger unicast service of real-time, provide transmission and retransmission feedback chance timely, reduce propagation delay time, the qos requirement of meeting unicast business, reduce receiving the complexity of the terminal of unicast service and reception MBS business, can also provide sufficient dispatching flexibility simultaneously, reduce whole system complexity.
Further, base station of the present invention is according to the dispatching requirement of the frame configuration information of system, unicast service and MBS business, for unicast service He Duo community MBS business, according to the mode of time-division or mixing time-division/frequency division, carry out multiplexing, in a downlink radio frame Nei Weiduo community MBS business and unicast service, carry out resource distribution, for MBS business provides suitable resource, and multicast and unicast service can adopt according to application scenarios the Cyclic Prefix of different length, thereby both guaranteed the covering of MBS business, improved again the spectrum efficiency of unicast service.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (17)
1. a sending method for control information of unicast service, for send the control information of described unicast service during with time-multiplexed mode shared resource at many cell multicast services and unicast service, is characterized in that, described method comprises:
In the downlink radio frame that contains many cell multicast services sending, by the control information of described unicast service being carried in the subframe of unicast service and/or by the control information of described unicast service is carried out to the transmission that frequency division multiplexing carries out control information with described multicast service and control information in the subframe of described multicast service; Wherein, the elementary cell of the control information of the described unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing described unicast service shared number of subcarriers and described unicast service on frequency domain in the subframe of described multicast service is identical, the shared OFDM symbol numbers of control information of the described unicast service carrying in the subframe of shared orthogonal frequency division multiplex OFDM symbol numbers and described unicast service in time domain is identical or different, takes the OFDM symbol numbers of place subframe.
2. method according to claim 1, is characterized in that, further comprises:
According to the predetermined transmission position of the control information of described unicast service, in described downlink radio frame, carry out the transmission of control information.
3. method according to claim 2, is characterized in that, described predetermined transmission position comprises:
The first descending sub frame of described radio frames, and take other descending sub frame that N subframe be interval, the value of N comprises: 1,2,3,4.
4. according to the method in any one of claims 1 to 3, it is characterized in that, in the subframe of described multicast service the control information of multiplexing described unicast service comprise following one of at least:
The confirmation of mixed automatic retransfer request, ascending resource mandate/assignment information, information in uplink mode, uplink power control information.
5. according to the method in any one of claims 1 to 3, it is characterized in that, in described unicast service subframe, in the Cyclic Prefix of OFDM symbol and described multicast service subframe, the Cyclic Prefix of OFDM symbol is identical or different, and the Cyclic Prefix of the OFDM symbol of the control information of the described unicast service of frequency division multiplexing in the subframe of described multicast service is identical with the Cyclic Prefix of the OFDM symbol of described multicast service.
6. according to the method in any one of claims 1 to 3, it is characterized in that, the control information of described unicast service comprises user proprietary control information and non-user proprietary control information.
7. a sending method for control information of unicast service, for send the control information of described unicast service during with the hybrid mode shared resource of time division multiplexing and frequency division multiplexing at multicast service and unicast service, is characterized in that, described method comprises:
In the downlink radio frame that contains many cell multicast services sending, by the control information of described unicast service being carried in the subframe of unicast service and/or by the data of the control information of described unicast service and described unicast service are carried out to the transmission that frequency division multiplexing carries out control information with described multicast service and control information in the lump in the subframe of described multicast service; Wherein, the elementary cell of the control information of the described unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing described unicast service shared number of subcarriers and described unicast service on frequency domain in the subframe of described multicast service is identical, the shared OFDM symbol numbers of control information of the described unicast service carrying in the subframe of shared OFDM symbol numbers and described unicast service in time domain is identical or different, takes the OFDM symbol numbers of place subframe.
8. method according to claim 7, is characterized in that, further comprises:
According to the predetermined transmission position of the control information of described unicast service, in described downlink radio frame, carry out the transmission of control information.
9. method according to claim 8, is characterized in that, described predetermined transmission position comprises:
The first descending sub frame of described radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4; And
The first descending multicast service subframe of described radio frames, and take other subframe of described the above multicast service of radio frames that N subframe be interval, the value of N comprises 1 or 2.
10. according to the method described in any one in claim 7 to 9, it is characterized in that, in the subframe of described multicast service the control information of multiplexing described unicast service comprise following one of at least:
Up/down row resource allocation information, up/down row transmission mode information, the confirmation of mixed automatic retransfer request, uplink power control information.
11. according to the method described in any one in claim 7 to 9, it is characterized in that, in described unicast service subframe, in the Cyclic Prefix of OFDM symbol and described multicast service subframe, the Cyclic Prefix of OFDM symbol is identical or different, and the Cyclic Prefix of the OFDM symbol of the control information of the described unicast service of frequency division multiplexing in the subframe of described multicast service is identical with the Cyclic Prefix of the OFDM symbol of described multicast service.
12. according to the method described in any one in claim 7 to 9, it is characterized in that, is a last M continuous descending sub frame in the downlink radio frame that described multicast service subframe contains many cell multicast services described in being.
13. according to the method described in any one in claim 7 to 9, it is characterized in that, the control information of described unicast service comprises user proprietary control information and non-user proprietary control information.
The sending method of 14. 1 kinds of control information of unicast service, for send the control information of described unicast service during with time-multiplexed mode shared resource at multicast service and unicast service, is characterized in that, described method comprises:
In the downlink radio frame that contains many cell multicast services sending, by only carry the control information of described unicast service in the subframe of described unicast service, carry out the transmission of control information, wherein, when carrying out the transmission of described control information, according to the predetermined transmission position of described control information, in downlink radio frame, carry out carrying of described control information, described predetermined transmission position comprises: the first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4.
The dispensing device of 15. 1 kinds of control information of unicast service, for send the control information of described unicast service during with time-multiplexed mode shared resource at multicast service and unicast service, is characterized in that, described device comprises:
Configuration module, is carried at the control information of described unicast service in the subframe of unicast service for the downlink radio frame that contains many cell multicast services sending;
Multiplexing module, for the control information of described unicast service being carried out to frequency division multiplexing with multi-service information in the subframe at described multicast service in described radio frames, wherein, the elementary cell of the control information of the described unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing described unicast service shared number of subcarriers and described unicast service on frequency domain in the subframe of described multicast service is identical, the shared OFDM symbol numbers of control information of the described unicast service carrying in the subframe of shared orthogonal frequency division multiplex OFDM symbol numbers and described unicast service in time domain is identical or different, take the OFDM symbol numbers of place subframe,
Sending module, for sending the described radio frames after described configuration module and/or described Multiplexing module are processed.
The dispensing device of 16. 1 kinds of control information of unicast service, for send the control information of described unicast service during with the hybrid mode shared resource of time division multiplexing and frequency division multiplexing at multicast service and unicast service, is characterized in that, described device comprises:
Configuration module, the downlink radio frame that contains many cell multicast services for sending, is carried at the control information of described unicast service in the subframe of unicast service;
Multiplexing module, for will carrying out frequency division multiplexing with multi-service information in the data of the control information of described unicast service and the described unicast service in the lump subframe at described multicast service in described radio frames, wherein, the elementary cell of the control information of the described unicast service carrying in the subframe of the basic resource unit of the control information of multiplexing described unicast service shared number of subcarriers and described unicast service on frequency domain in the subframe of described multicast service is identical, the shared OFDM symbol numbers of control information of the described unicast service carrying in the subframe of shared OFDM symbol numbers and described unicast service in time domain is identical or different, take the OFDM symbol numbers of place subframe,
Sending module, for sending the described radio frames after described configuration module and/or described Multiplexing module are processed.
The dispensing device of 17. 1 kinds of control information of unicast service, for send the control information of described unicast service during with time-multiplexed mode shared resource at multicast service and unicast service, is characterized in that, described device comprises:
Configuration module, for the downlink radio frame that contains many cell multicast services sending, only in the subframe of described unicast service, carry the control information of described unicast service, wherein, when carrying out the transmission of described control information, according to the predetermined transmission position of described control information, in downlink radio frame, carry out carrying of described control information, described predetermined transmission position comprises: the first descending sub frame of radio frames, and take other descending clean culture subframe that N subframe be interval, the value of N comprises 1,2,3,4;
Sending module, for sending the described radio frames after described configuration module is processed.
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| EP3319256B1 (en) * | 2015-07-27 | 2020-01-08 | Huawei Technologies Co., Ltd. | Response information sending and receiving method, and receiving device and sending device |
| WO2017049544A1 (en) * | 2015-09-24 | 2017-03-30 | 华为技术有限公司 | Method and apparatus for sending and receiving multicast service and dedicated service |
| CN112583561B (en) * | 2019-09-30 | 2023-11-17 | 中兴通讯股份有限公司 | Information sending and receiving method and device |
| CN113645668B (en) * | 2020-04-27 | 2023-03-24 | 大唐移动通信设备有限公司 | Method, device and storage medium for multi-cell MBMS service transmission |
| CN116566551A (en) * | 2020-07-31 | 2023-08-08 | Oppo广东移动通信有限公司 | MBS service transmission method and device, terminal equipment and network equipment |
| CN114531655B (en) * | 2020-11-23 | 2024-03-22 | 维沃移动通信有限公司 | Resource indication method, access network side equipment and core network function |
| CN116530168A (en) * | 2020-12-11 | 2023-08-01 | Oppo广东移动通信有限公司 | Semi-static scheduling method and device for MBS service, terminal equipment and network equipment |
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| CN101060473A (en) * | 2006-04-20 | 2007-10-24 | 中兴通讯股份有限公司 | A method for realizing the multicast/broadcast service resource reserve |
| CN101156342A (en) * | 2005-09-29 | 2008-04-02 | 华为技术有限公司 | Broadcasting service channel and non-broadcasting service channel multiplexing method and device |
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| CN101060473A (en) * | 2006-04-20 | 2007-10-24 | 中兴通讯股份有限公司 | A method for realizing the multicast/broadcast service resource reserve |
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