CN101061686A - Method and apparatus for signaling control information of uplink packet data service in mobile communication system - Google Patents
Method and apparatus for signaling control information of uplink packet data service in mobile communication system Download PDFInfo
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- CN101061686A CN101061686A CNA2005800383440A CN200580038344A CN101061686A CN 101061686 A CN101061686 A CN 101061686A CN A2005800383440 A CNA2005800383440 A CN A2005800383440A CN 200580038344 A CN200580038344 A CN 200580038344A CN 101061686 A CN101061686 A CN 101061686A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
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- H04W52/14—Separate analysis of uplink or downlink
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Abstract
A method and apparatus for transmitting control information relating to an uplink packet data service from an UE to a Node B in a mobile communication system are provided. MAC-es protocol data units (PDUs) including uplink packet data and a control service data unit (SDU) including the control information are multiplexed and contained in a MAC-e PDU. In a header of the MAC-e PDU, a header part corresponding the control SDU contains a data description indicator (DDI) field set as a specific value representing that the control information is transmitted, and a header part corresponding to the MAC-es PDU contains a DDI field which represents a MAC-e flow and a logical channel relating to the uplink packet data, and a data size. Node B detects the control information from the control SDU based on the DDI field set as the specific value.
Description
Technical field
The present invention relates to a kind of mobile communication system that is used for transmitting grouped data in up link.More specifically, the present invention relates to a kind of method and apparatus that signaling efficiently is used for controlling the control information of uplink packet data service that is used for.
Background technology
Europe class 3-G (Generation Three mobile communication system) based on global system for mobile communications (GSM) and GPRS (GPRS) and use asynchronous wide-band code division multiple access (WCDMA) is used the up-link (E-DCH or EUDCH) that strengthens.E-DCH is suggested the grouping conveying function in the uplink communication that is used for improving the asynchronous WCDMA communication system.
Support the mobile communication system of E-DCH to adopt the scheduling scheme of Node B control and mix automatic repeat requests (HARQ) scheme, so that the efficient maximum that up link is transmitted.According to the scheduling scheme of Node B control, to the channel of Node B reporting user facility (UE) and the state of buffer, Node B is controlled the up link transmission of UE based on the information of being reported then.Node B allows to send mass data to good channel conditions UE, and makes the data volume minimum that will send the UE with poor channel state to, so that use limited uplink transmission resource efficiently.According to the HARQ scheme, when the grouping that sends Node B from UE to, mistake occurring, retransmit this grouping, so that remedy the mistake of this grouping, thereby increase is as the successful transfer rate of the function of delivering power.By the HARQ scheme, this wrong data block has not taken place during not being discarded in the transmission of data block in Node B, and with the soft combination of the data block of vicious data block and re-transmission, thereby increase the probability that successfully receives data block.
In up link, owing between the signal that transmits from a plurality of UE, do not keep orthogonality, so uplink signal interferes with each other.When Node B receives more uplink signals, increase with interference, thereby reduce the receptivity of Node B from the uplink signal of particular UE.Owing to this reason, the Node B restriction can be at the number of the uplink signal of guaranteeing to receive under the situation of its whole receptivity.The Radio Resource of as equation (1) illustrates, representing Node B.
Rot＝I
0/N
0 (1)
Here, " I
0" total reception broadband power spectrum density of expression Node B, and " N
0" expression Node B the thermal noise power spectrum density.Therefore, " ROT " expression Node B can be the uplink radio resources that the E-DCH Packet data service in the up link is distributed.
Figure 1A and Figure 1B are the curve charts of the change of the uplink radio resources that can distribute of diagram Node B.
Shown in Figure 1A and Figure 1B, uplink radio resources can be expressed as inter-cell interference, voice services volume and E-DCH packet traffic and.More particularly, Figure 1A illustrates the change of total ROT when not using the scheduling of Node B control.Under situation about not carrying out for the scheduling of E-DCH packet traffic, if a plurality of UE can transmit grouped data simultaneously with high data rate, then total ROT may surpass target ROT, and this has reduced the receptivity of uplink signal.
Figure 1B illustrates the change of total ROT when using the scheduling of Node B control.Under the situation of the scheduling of using Node B control, Node B prevents that a plurality of UE from transmitting grouped data with high data rate simultaneously.That is to say,, when allowing high data rate, allow low rate, thereby prevent that total ROT from surpassing target ROT for other UE for particular UE according to the scheduling of Node B control.
When the data rate of UE became higher, Node B received higher received power from this UE, made the ROT of this UE occupy total ROT more most of of Node B.Otherwise when the data rate of UE became lower, Node B received lower received power from this UE, made the ROT of this UE occupy the more fraction of total ROT of Node B.Node B considers that the data rate of relation between data rate and the Radio Resource and UE request comes the scheduling to E-DCH grouped data XM B control.
Node B is used E-DCH or whether can be transmitted the E-DCH data based on the data rate from the UE request based on channel condition information to each UE notice, and perhaps the E-DCH data rate is adjusted in the scheduling of XM B control.The scheduling of Node B control is considered to following operation, that is: Node B is distributed to a plurality of UE based on the state of the channel of the UE that carries out E-DCH communication and buffer with ROT.
Fig. 2 illustrates Node B and carries out the UE that uplink packet transmits.
UE 210,212,214 and 216 according to they with Node B 200 between distance and transmit system for uplink packet data with different uplink channel delivering power level 220,222,224,226.UE 210 farthest transmits grouped data with the highest uplink channel transmission power level 220, and nearest UE 214 transmits grouped data with minimum uplink channel transmission power level 224.Node B 200 can be come the scheduling uplink data so that the delivering power of uplink channel is inversely proportional to the mode of its data rate, so that improve the performance of mobile communication system, keeps total ROT simultaneously and reduces ICI.Therefore, Node B 200 is given less relatively transmission resource allocation the UE 210 with the highest uplink channel delivering power, and transmission resource allocation that will be more is relatively had the UE 214 of lowest uplink channel delivering power, thereby manages total ROT effectively.
Fig. 3 is that diagram divides the transmission resource and this UE that are used in transmission E-DCH grouped data to transmit the view of the process of grouped data by using the transmission resource of being distributed from Node B to UE.
In step 310, between Node B 300 and UE 302, set up E-DCH.Step 310 comprises the step by dedicated transmission channel transmission/reception message.In step 312, UE 302 will send Node B 300 to about the information of required transmission resource and about the schedule information of uplink channel state.Schedule information comprises the information about the uplink transmission power of UE 302 and delivering power nargin (margin) and buffer state.
The Node B 300 that receives described information is assessed uplink channel state by the received power of relatively uplink channel delivering power and actual measurement.If the difference between uplink channel delivering power and the uplink channel received power is less, then uplink channel state is better.Otherwise if the difference between described delivering power and the received power is bigger, then uplink channel state is relatively poor.When UE 102 transmitted described delivering power nargin, Node B 300 was estimated uplink transmission power by deduct delivering power nargin from the known maximum available transmit power of UE 302.Node B 300 is based on the uplink transmission power of the UE 302 that is estimated and the transmission resource of determining to can be used for the uplink packet channel of UE 302 about the information of the buffer state of UE 302.
In step 314, Node B 300 is notified determined transmission resource to UE 302.In the case, the size that described transmission resource can be transmissible data, be data rate, perhaps can be available delivering power.In step 316, UE 302 passes through the size that the transmission resource reported is determined the grouped data that will transmit, and sends the data of determined size to Node B 300.In this case, a unit of the grouped data that will transmit by E-DCH is called media interviews control and strengthens protocol Data Unit (MAC-e PDU).
As mentioned above, providing required buffer status information of uplink packet data service etc. by E-DCH is essential control information for the efficient scheduling of Node B.Being used between UE and Node B as described above, the agreement of transmission/receiving control information is called as the media interviews controls (MAC-e) that are used for E-DCH.Owing to this reason, described control information is called " MAC-e control information ".Therefore, need a kind of detailed method of signaling MAC-e control information more efficiently that is used for.
Summary of the invention
Therefore, made the present invention, so that solve the problems referred to above that occur in the prior art.The invention provides a kind of method and apparatus that is used for transmitting/receiving as the part of MAC-ePDU the MAC-e control information in the mobile communication system of support uplink Packet data service.
According to an aspect of the present invention, a kind of method that is used for transmitting in mobile communication system the control information of uplink packet data service is provided, and this method comprises: form at least one first protocol Data Unit (PDU) that comprises system for uplink packet data; Formation comprises the control Service Data Unit (SDU) of the control information of uplink packet data service; Form corresponding at least one first header portion by data description designator (DDI) field of using expression the one PDU and the N field that expression is included in the number of the system for uplink packet data among the PDU with a PDU; Be set to indicate the DDI field of the predetermined value of the control SDU that will transmit to form and control corresponding second header portion of SDU by use; And by header and payload cascade are formed the second packet unit (PDU), and send the 2nd PDU to Node B, wherein, described header comprises header portion, and described payload comprises a PDU and control SDU.
According to a further aspect in the invention, provide a kind of method that is used in the control information of mobile communication system receiving uplink Packet data service, this method comprises: receive first protocol Data Unit (PDU) by using header and payload to form; Based on being included in the header portion in the header and be a plurality of data cells with the payload demultiplexing; Based on data description designator (DDI) field corresponding to the header portion of described data cell, the control Service Data Unit (SDU) that described data cell is divided at least one the 2nd PDU that comprises system for uplink packet data and the control information that comprises uplink packet data service, wherein, be set to predetermined value with the DDI field of the corresponding header portion of described control SDU, and obtained control information from described control SDU.
According to a further aspect in the invention, a kind of subscriber equipment (UE) that is used for transmitting in mobile communication system the control information of uplink packet data service is provided, this UE comprises: at least one piece is used to form at least one first protocol Data Unit (PDU) that comprises system for uplink packet data; Control unit is used to form the control Service Data Unit (SDU) of the control information that comprises uplink packet data service; And it is multiplexed and transmit serial number (TSN) unit is set, be used for the N field that data description designator (DDI) field by using expression the one PDU and expression are included in the number of the system for uplink packet data that a PDU comprises, form at least one first header portion corresponding to a PDU.Multiplexed and TSN is provided with the unit and is set to indicate the DDI field of the predetermined value that is transmitting control SDU to form corresponding to second header portion of controlling SDU by use, and by header and payload cascade are formed the second packet unit (PDU), described header comprises header portion, described payload comprises a PDU and control SDU, and wherein the 2nd PDU is transmitted to Node B.
According to a further aspect in the invention, a kind of Node B that is used in the control information of mobile communication system receiving uplink Packet data service is provided, this Node B comprises: demultiplexing unit, be used to receive first protocol Data Unit (PDU) that comprises header and payload, header portion based on header is a plurality of data cells with the payload demultiplexing, and based on data description designator (DDI) field of the corresponding header portion of described data cell, described data cell is divided at least one the 2nd PDU and control Service Data Unit (SDU), described the 2nd PDU comprises system for uplink packet data, described control SDU comprises the control information of uplink packet data service, and wherein the DDI field with the corresponding header portion of control SDU has been set to predetermined value; And control unit, be used for obtaining control information from described control SDU.
Description of drawings
According to the following detailed description of carrying out in conjunction with the accompanying drawings, above-mentioned and other example purpose of the present invention, feature and advantage will be clearer, and in the accompanying drawings, identical reference number will be understood that to represent identical part, assembly and structure, wherein:
Figure 1A is the curve chart of diagram change of the uplink radio resources of Node B when not using the scheduling of Node B control;
Figure 1B is the curve chart of diagram change of the uplink radio resources of Node B when using the scheduling of Node B control;
Fig. 2 illustrates Node B and carries out the UE that uplink packet transmits;
Fig. 3 is used to illustrate in order to carry out uplink packet to transmit the view of the information of transmission/reception between UE and Node B;
Fig. 4 A and Fig. 4 B are the block diagrams that schematically illustrates the structure of UE, Node B and RNC according to illustrated embodiments of the invention;
Fig. 5 is the block diagram of diagram according to the structure of first grouped data example implementation mode, that use in uplink packet data service of the embodiment of the invention;
Fig. 6 is the flow chart of diagram according to the operation of the UE of the first example implementation mode of the embodiment of the invention;
Fig. 7 is the flow chart of diagram according to the operation of the Node B of the first example implementation mode of the embodiment of the invention;
Fig. 8 is the block diagram that illustrates the structure of the MAC-e PDU that uses DDI;
Fig. 9 is the block diagram of diagram according to the structure of the MAC-e PDU second example implementation mode, that use DDI of the embodiment of the invention;
Figure 10 is the flow chart of diagram according to the operation of the UE of the second example implementation mode of the embodiment of the invention;
Figure 11 is the flow chart of diagram according to the operation of the Node B of the second example implementation mode of the embodiment of the invention;
Figure 12 is the block diagram of diagram according to the structure of the MAC-e PDU of the 3rd example implementation mode of the embodiment of the invention;
Figure 13 is the flow chart of diagram according to the operation of the UE of the 3rd example implementation mode of the embodiment of the invention; And
Figure 14 is the flow chart of diagram according to the operation of the Node B of the 3rd example implementation mode of the embodiment of the invention.
Embodiment
Hereinafter, example embodiment of the present invention is described with reference to the accompanying drawings.In following description, for simplicity's sake, omission is combined in this known function and the detailed description of configuration the embodiment of the invention.
One of characteristic of the present invention described below be in the mobile communication system of support uplink Packet data service as the part of system for uplink packet data and transmit/control information of receiving uplink Packet data service.In the following description, will explain uplink packet data service by the up-link (E-DCH) that use is used for the enhancing of the universal mobile telecommunications service (UMTS) as 3G (Third Generation) Moblie.Yet scope of the present invention is not subjected to this system and criteria limit, can use all types of communication system described below but include.
The radio network controller (RNC) that UMTS Terrestrial radio access network network (UTRAN) comprises the Node B that is configured with a plurality of sub-districts and is used to manage the Radio Resource of these sub-districts and Node B.
Fig. 4 A and Fig. 4 B are the block diagram of diagram according to the structure of the subscriber equipment embodiment of the invention, that be used for the support uplink Packet data service (UE), Node B and RNC.
With reference to Fig. 4 A, UE 402 comprises: Radio Link control (RLC) entity 405A to 405C, 407A and the 407B (being called " 405 and 407 " hereinafter for short) of rlc layer; Control and multiplexed unit 410A of traffic carrying capacity (C/T) and 410B are used for multiplexed information is inserted from RLC entity 405 and 407 data that transmit; And be used for media interviews controls (MAC-e/es) layer 420 that E-DCH/ is RNC service.
The RLC entity 405 and 407 of rlc layer is arranged to each logic channel or radio bearer, is stored in the data that the upper strata produces, and has the size that is suitable for radio layer so that be transmitted in the data that the upper strata produces.As a reference, radio bearer channel represents to be configured to handle the upper layer entity and the RLC entity of the predetermined data of using, and the logic channel presentation logic is connected the channel between rlc layer and the MAC layer.Logic channel of each radio bearer channel configuration.
Multiplexed unit 410A of C/T and 410B are inserted into multiplexed information by logic channel from RLC entity 405 and 407 data that transmit.Described multiplexed information can be the identifier of logic channel, and receiver side sends the data that received to suitable receiver side RLC entity with reference to this identifier.Multiplexed unit 410A of C/T and 410B are also referred to as " MAC-d " layer.
To be called " MAC-dPDU " from the data of multiplexed unit 410A of each C/T or 410B output, and a series of MAC-d PDU will be called " MAC-d stream " 415.MAC-d stream 415 is by based on institute's requested service quality (QoS) the logic channel classification being obtained.To ask the data qualification of the logic channel of identical QoS to flow in 415, and MAC-e/es layer 420 can provide specific QoS for each MAC-d stream to identical MAC-d.For example, can control QoS by the number of control HARQ re-transmission or by adjusting delivering power.
MAC-e/es layer 420 comprises E-DCH transmit control unit 425, multiplexed and transmit serial number (TSN) unit 430 and HARQ entity 435 are set.
The E-DCH transmit control unit 425 management control information relevant with E-DCH.The control information relevant with E-DCH comprises schedule information, for example buffer state or uplink transmission power.Consider this control information when the Node B operation dispatching, and this control information is piggybacked affirmation (piggyback) on the MAC-e PDU that will transmit, described MAC-e PDU is the E-DCH grouped data.
Multiplexed and TSN is provided with unit 430 and creates MAC-e PDU by multiplexed information is inserted into from the data that transmit on the upper strata with the transmission serial number.Transmission and the re-transmission of the HARQ of HARQ entity 435 control MAC-e PDU.HARQ entity 435 is based on transmission and the re-transmission of controlling MAC-e PDU from affirmation (ACK) or (NACK) unconfirmed signal of Node B 437 transmission.
With reference to Fig. 4 B, Node B 437 comprises that HARQ entity 450, demultiplexing unit 455, E-DCH receive control unit 445.To send HARQ entity 450 to from the MAC-e PDU of HARQ entity 435 output of UE 402 physical layer by physical layer, wireless channel and the Node B 437 of UE 402.Transmission and the re-transmission of HARQ entity 450 control HARQ.That is to say that HARQ entity 450 produces ack/nack signal and sends it to UE402 in response to the MAC-e PDU that transmits by physical layer, and the MAC-e PDU that retransmits is combined with the MAC-e PDU of previous reception and buffering.
As mentioned above, a UE 402 comprises a plurality of RLC entities 405 and 407, and the corresponding logic channel of RLC.A plurality of logic channels can a corresponding rearrangement formation.For example, the corresponding rearrangement of RLC# 1 to RLC#3 405A to 405C formation 465, and the corresponding rearrangement of RLC# 4 and RLC#5 407A and 407B formation 470.
When allowing UE 402 (referring to Fig. 4 A) to use uplink transmission resource from Node B 437, UE 402 brings the data of the scheduled volume that is applicable to described transmission resource from RLC entity 405 and 407, so that configuration and transmit MAC-e PDU.Multiplexed and TSN is provided with unit 430 the MAC-e header information is inserted into from RLC entity 405 and the 407 RLC PDU that transmit, thereby produces MAC-ePDU.In the case, have the control information relevant with E-DCH, this control information also is inserted among the MAC-e PDU, so that transmit with this MAC-e PDU.
Hereinafter, with the method for describing according to illustrated embodiments of the invention that is used for control information is inserted MAC-ePDU.
" example embodiment 1 "
Fig. 5 is the block diagram of diagram according to the structure of the MAC-e PDU of the first example implementation mode of the embodiment of the invention.MAC-e PDU 505 offers the data of physical layer by transfer channel, and comprises MAC-e header 510 and MAC-e payload 515.
The MAC-e payload 515 of MAC-e PDU 505 can comprise at least one MAC-es PDU550, and MAC-e header 510 comprises the multiplexed information relevant with MAC-es PDU 550.MAC-e payload 515 can comprise the RLC PDU from a plurality of RLC entity set-up, and wherein, it is adjacent to each other to be included as among MAC-e PDU 505 position from the RLC PDU 560 of same RLC entity set-up.That is to say, be comprised in the MAC-es PDU 550 from the RLC PDU 560 and the TSN 555 of same RLC entity set-up.TSN 555 is the information that is used for the rearrangement of MAC-es PDU 550.In addition, MAC-e payload 515 can comprise the MAC-e control Service Data Unit (MAC-e controls SDU) 540 that contains the MAC-e control information.
The header portion 520 and 530 that MAC-e header 510 comprises the k number (here, " k " is positive integer), and header portion 520 and 530 according to the order of their positions in MAC-e header 510 one by one corresponding to the data cell 540 and 550 that is included in the MAC-e payload 515.That is to say that first header portion 520 is corresponding to MAC-e control PDU ([1]: MAC-e controls SDU) 540, and k header portion 530 is corresponding to k MAC-es PDU ([k]: MAC-es PDU) 550.Each header portion 520 or 530 comprises multiplexed identifier 522 or 532, be used to represent the N field 524 or 534 and the F field 526 or 536 that is used for indicator sign of PDU number.Will be to providing following description with the k MAC-es PDU 550 corresponding header portions 530 that comprise RLC PDU.
When call setup, determine relation between multiplexed identifier and logic channel, rearrangement formation and the RLC PDU size by RNC 462, and subsequently this relation is reported to UE 402 and Node B 437.Table 1 shows the relation between multiplexed identifier and logic channel, rearrangement formation and the RLC PDU size.Here, the expression of RLC PDU size is input to the size of the MAC-d PDU of MAC-e/es layer 420.
Table 1
| Multiplexed identifier | Logical channel identifier | The rearrangement queue identifier | RLC PDU size |
| Mux id 0 | LCH 0 | Rearrangement formation 0 | 336 |
| Mux id | |||
| 1 | | Rearrangement formation 0 | 336 |
| Mux id | |||
| 2 | | | 336 |
| Mux id | |||
| 3 | | | 168 bits |
Multiplexed and the TSN of UE 402 is provided with unit 430 storages relation information as shown in table 1.When receiving RLC PDU by logic channel, multiplexed and TSN is provided with unit 430 is identified for this RLC PDU with reference to the identifier of this logic channel multiplexed identifier.If this logic channel is corresponding to a plurality of multiplexed identifiers, then multiplexed and TSN is provided with unit 430 and determines corresponding multiplexed identifier with reference to the size of the RLC PDU that is received.For example, when receiving each RLC PDU with 336 bit sizes by LCH 2, multiplexed and TSN is provided with unit 430 and utilizes this RLC PDU to dispose MAC-es PDU, and multiplexed identifier is defined as " 2 ".Although described the present invention at the multiplexed identifier with 4 bit sizes, scope of the present invention is not limited thereto.
When determine transmitting MAC-e control information 545, the E-DCH transmit control unit 425 by UE 402 is inserted into MAC-e control information 545 in the MAC-e payload 515 of MAC-e PDU 505.The value branch of special multiplexed identifier is used in the MAC-e control SDU 540 that comprises MAC-e control information 545.That is to say, independent header structure is not used for MAC-e control information 545.For ease of describing, in the following description, will call " Mux_id_control " to particular value corresponding to MAC-e control SDU 540.
When producing MAC-e control information 545, UE 402 is inserted into MAC-e control information 545 among the MAC-e control SDU 540 of MAC-e PDU 505, so that transmit MAC-e control information 545.In the case, will be set to Mux_id_control corresponding to the multiplexed identifier 522 that MAC-e controls the header portion 520 of SDU 540.When Node B 437 received MAC-e PDU 505, Node B 437 was divided into MAC-es PDU 550 with reference to MAC-e header 510 with the MAC-e payload 515 of MAC-e PDU 505.The MAC-es PDU 550 that will comprise RLC PDU sends RNC462 to.Otherwise the MAC-e control SDU 540 that will have the multiplexed identifier 522 that has been set to Mux_id_control sends E-DCH transmit control unit 425 to.
Can utilize one of following three schemes will control N field 524 codings of SDU 540 corresponding header portions 520 with MAC-e.
The first, N field 524 comprises the information about the number of MAC-e control SDU 540.In the case, because N field 524 has value " 1 " all the time, therefore do not need N field 524.
The second, N field 524 comprises the information about the size of MAC-e control SDU540.In the case, as by the value that obtains with predetermined integers on duty of N field 524 being determined the size of MAC-e control SDU 540.Yet when MAC-e control SDU 540 comprised information about its oneself size, the value of N field 524 became the information of repetition.
The 3rd, N field 524 is not used in MAC-e control SDU 540.That is to say that F field 526 located just are after being set to the multiplexed identifier 522 of Mux_id_control.
Fig. 6 is the flow chart of diagram according to the operation of the UE 402 of the first example implementation mode of the embodiment of the invention.
In step 605, the E-DCH transmit control unit 425 of UE 402 triggers the transmission of MAC-e control information.In step 610, E-DCH transmit control unit 425 utilizes the MAC-e control information to dispose MAC-e control SDU, and sends to this MAC-e control SDU multiplexed and TSN is provided with unit 430.
In step 615, multiplexed and TSN is provided with unit 430 and is set to Mux_id_control with the multiplexed identifier that MAC-e controls the corresponding MAC-e header portion of SDU, and described Mux_id_control is the particular value of being scheduled to.In step 620, multiplexed and TSN is provided with the N field that unit 430 is provided for MAC-e control SDU.If do not use the N field that is used for MAC-e control SDU, then omit step 620.In step 625, multiplexed and TSN is provided with unit 430 the F field is set.If with the corresponding MAC-e header portion of MAC-e control SDU after have MAC-es PDU, then the F field has " 1 ", and if there is no, then the F field has " 0 ".
Although it is not illustrated, the MAC-esPDU that comprises the RLC PDU that creates from RLC entity 405 can be transmitted to multiplexed and TSN is provided with unit 430.Multiplexed and TSN is provided with size and/or the number of unit 430 based on RLC PDU, multiplexed identifier, N field and F field in setting and corresponding each header portion of MAC-es PDU.In step 630, multiplexed and TSN is provided with unit 430 and disposes MAC-e PDU by MAC-e header, MAC-e control SDU and the MAC-es PDU cascade that will comprise the MAC-e header portion, sends this MAC-e PDU to Node B 437 by HARQ entity 435 and logical layer then.The MAC-es PDU that if there is no will transmit then transmits the MAC-e PDU that includes only MAC-e control SDU.
Fig. 7 is the flow chart of diagram according to the operation of the Node B 437 of first example embodiment of the embodiment of the invention.
In step 705, Node B 437 receives the MAC-e PDU that comprises MAC-e header and MAC-e payload from UE 402, and the MAC-e PDU that is received is input to demultiplexing unit 455.In step 710, demultiplexing unit 455 is analyzed the MAC-e header of MAC-e PDU, and the MAC-e payload that will be included among the MAC-e PDU is divided into MAC-es PDU.
" example embodiment 2 "
According to the first example implementation mode of the embodiment of the invention, use the multiplexed identifier in the MAC-e header that is included in MAC-e PDU to come recognition logic channel, rearrangement formation and RLC PDU size.Different with first embodiment, the second example implementation mode of the embodiment of the invention is used data description designator (DDI), so that identification MAC-d stream rather than rearrangement formation.The two includes about the information of the size of the RLC PDU that comprises in MAC-es PDU and about the viewpoint of RLC PDU with the information on the upper strata that is sent to according to the combination of the combination of logic channel, rearrangement formation and RLC PDU size and logic channel, MAC-d stream and RLC PDU size, and the combination of logic channel, rearrangement formation and RLC PDU size is flowed identical with the combination of RLC PDU size with logic channel, MAC-d.The second example implementation mode of the embodiment of the invention is used as the logical identifier DDI that is used for recognition logic channel, MAC-d stream and RLC PDU size, so that expression MAC-e control SDU.
One of DDI value can replace the F field.As mentioned above, the F field is served as and is used to represent that the field of back is the new MAC-e header portion or the sign of MAC-e payload.When distributing predetermined value (for example " 111111 ") as special DDI value, this special DDI value is represented the end that is used for MAC-e header that MAC-e header and MAC-e payload section are separated.
Fig. 8 is the block diagram that illustrates the structure of the MAC-e PDU that uses special DDI value.MAC-e PDU835 offers the data of physical layer by transfer channel, and comprises MAC-e header 840 and MAC-e payload 845.
The MAC-e payload 845 of MAC-e PDU 835 comprises MAC-es PDU 850, its each comprise TSN and a plurality of RLC PDU.The header portion 805,810 and 815 of " k " number of MAC-e header 840 is one by one corresponding to the composition that is included in the MAC-e payload 845.Utilize DDI field 820 (its presentation logic channel, rearrangement formation and RLC PDU size) and be used to represent that the N field 825 of RLC PDU number disposes the 850 corresponding MAC-e header portion #1805 with a MAC-es PDU.Similarly, utilize DDI field and the N field that is used for next MAC-es PDU to dispose MAC-e header portion # 2 810.As mentioned above, the DDI field 830 of k header portion 815 (it is a last part) is set to special DDI value, i.e. " 111111 " are so that the end of expression MAC-e header 840.Can utilize filling bit 855 to fill predetermined portions with the corresponding MAC-e payload of described special DDI value.That is to say that described special DDI value representation RLC PDU can not be present in the predetermined portions with DDI field 830 corresponding MAC-e payloads 845.
In addition, can use described special DDI value to represent whether there is control information.According to another example embodiment of the present invention, DDI field 830 can be set to represent the particular value that the predetermined portions with DDI field 830 corresponding MAC-e payloads is filled, and can be set to perhaps represent that the predetermined portions with DDI field 830 corresponding MAC-e payloads is another particular value of control information.Yet following example is described special DDI value representation of hypothesis and is filled or control information.In this example implementation mode, filling bit is considered as a kind of control information.
Fig. 9 is the block diagram of diagram according to the structure of the MAC-e PDU of the second example implementation mode of the embodiment of the invention.MAC-e PDU 940 comprises MAC-e header 945 and MAC-e payload 950, and MAC-e header 945 comprises the header portion 905,910 and 915 of k number.Header portion 905 to 915 is one by one corresponding to the composition that comprises in MAC-e payload 950.Utilize DDI field 920 (its presentation logic channel, MAC-d stream and RLC PDU size) and be used to represent that the N field 925 of RLC PDU number disposes the 955 corresponding MAC-e header portion # 1 905 with a MAC-es PDU.Similarly, utilize DDI field and the N field that is used for next MAC-es PDU to dispose MAC-e header portion # 2 910.
The DDI field 930 of k header portion 915 (it is a last part) is set to special DDI value, and for example " 111111 " are so that the relevant portion of expression MAC-e payload comprises MAC-e control SDU960.Do not use the N field of last header portion 915.
Described special DDI value representation comprises the MAC-e control SDU of filling bit or MAC-e control information.The MAC-e control information is with schedule information for referencial use when the scheduler operation dispatching of Node B.For example, the MAC-e control information comprises about the power information of the delivering power nargin of UE or the buffer status information of UE.Described delivering power nargin is represented the maximum available transmit power of UE.The UE that communicates by dedicated channel transmits pilot bits, transport format combination indicator (TFCI) etc. by Dedicated Physical Control Channel (DPCCH) all the time.Therefore, by from total delivering power, deducting the available transmit power that the delivering power that is used for DPCCH obtains UE.Because DPCCH power is controlled, therefore when the wireless channel environment of UE became poorer, delivering power nargin became littler.Therefore, the scheduler of Node B is assessed the wireless channel environment of UE by using delivering power nargin.The buffer status information of UE represents to be stored in the data volume in the buffer of UE.
The structure that the MAC-e control information is inserted into MAC-e control SDU 960 wherein will be described now.
Type field 965,970 and 975 is inserted among the MAC-e control SDU 960.Type field 965,970 and 975 expressions are inserted into the kind of the control information among the MAC-e control SDU 960.For example, type 0 can be represented to fill, and Class1 is represented power information, and type 2 expression buffer status information.The remainder of the MAC-e PDU 940 of utilization except MAC-e header 945 and MAC-es PDU assigns to dispose MAC-e control SDU 960, so the size of MAC-e control SDU 960 is variable.Because control information has pre-sizing, therefore after being inserted into type information and control information among the MAC-e control SDU 960, can fill up the remainder of MAC-e control SDU 960 with filling bit.
Filling bit is inserted among the 0 type MAC-e control SDU 965.
Power information 980 (words of filling bit also have filling bit if desired) is inserted into 1 type MAC-e control SDU 970.
The buffer state reports (BSR) 985 (words of filling bit also have filling bit if desired) of expression buffer state is inserted among the 2 type MAC-e control SDU 975.
Although only disclose the type of three kinds of forms in the above,, can use more multi-form type according to the kind that is inserted into the control information among the MAC-e control SDU960.For example, can increase and be used to represent to comprise the two the newtype of control information of power information and buffer status information.
As mentioned above, second example embodiment is used one of DDI value, so that whether expression comprises control information.Because different with first example embodiment, second example embodiment is also used N field and F field, the transmission resource of therefore can avoiding waste.
The applied system of the second embodiment of the present invention has and the identical structure of system shown in Fig. 4 A and Fig. 4 B.The operation of UE 402 and Node B 437 is described now with reference to Fig. 4 A and Fig. 4 B.
Figure 10 is the flow chart of diagram according to the operation of the UE 402 of the second example implementation mode of the embodiment of the invention.
In step 1005, the E-DCH transmit control unit 425 of UE 402 triggers the transmission of MAC-e control information.In step 1010, E-DCH transmit control unit 425 utilizes the MAC-e control information to dispose MAC-e control SDU, and sends to this MAC-e control SDU multiplexed and TSN is provided with unit 430.In the case, MAC-e control SDU comprises type information and control information, as shown in Figure 9.Can utilize the information except above-mentioned information to dispose MAC-e control SDU.In step 1015, multiplexed and TSN is provided with unit 430 and is set to predetermined value with the value that MAC-e controls the DDI field of the corresponding MAC-e header portion of SDU, promptly is set to special DDI value.
Although it is not illustrated, the MAC-esPDU that comprises the RLC PDU that creates from RLC entity 405 can be transmitted to multiplexed and TSN is provided with unit 430.Multiplexed and TSN is provided with unit 430 and based on the size of RLC PDU and number multiplexed identifier, DDI field and N field with corresponding each header portion of this MAC-es PDU is set.Be configured to the DDI field with the corresponding header portion of MAC-e control SDU.In step 1020, multiplexed and TSN is provided with unit 430 and disposes MAC-e PDU by MAC-e header, MAC-es PDU and the MAC-e control SDU cascade that will comprise the MAC-e header portion, sends this MAC-e PDU to Node B 437 by HARQ entity 435 and logical layer then.
Figure 11 is the flow chart of diagram according to the operation of the Node B 437 of the second example implementation mode of the embodiment of the invention.
In step 1105, Node B 437 receives the MAC-e PDU that comprises MAC-e header and MAC-e payload from UE 402, and the MAC-e PDU that is received is input in the demultiplexing unit 455.In step 1110, demultiplexing unit 455 is analyzed the MAC-e header of this MAC-e PDU, and the MAC-e payload that will comprise in this MAC-e PDU is divided into MAC-es PDU.
" example embodiment 3 "
According to first example embodiment, the special DDI value of expression MAC-e being controlled SDU is used for the DDI field, and the use N field relevant with the DDI field represents to be inserted into the kind of the control information among the MAC-e control SDU.
Figure 12 is the block diagram of diagram according to the structure of the MAC-e PDU of the 3rd example implementation mode of the embodiment of the invention.MAC-e PDU 1240 comprises MAC-e header 1245 and MAC-e payload 1250, and MAC-e header 1245 comprises the header portion 1205,1210 and 1215 of k number.Header portion 1205 to 1215 is one by one corresponding to the composition that comprises in MAC-e payload 1250.Utilize DDI field 1220 (its presentation logic channel, MAC-d stream and RLC PDU size) and be used to represent that the N field 1225 of RLC PDU number disposes the 1255 corresponding MAC-e header portion # 1 1205 with a MAC-es PDU.Utilize DDI field and the N field that is used for next MAC-es PDU to dispose MAC-e header portion # 2 1210.
Similarly, utilize DDI field 1230 and N field 1235 to dispose k header portion 1215 (it is last part).DDI field 1230 is set to special DDI value, and for example " 111111 " are so that the relevant portion in the expression MAC-e payload comprises MAC-e control SDU 1260.Described special DDI value representation comprises the MAC-e control SDU of MAC-e control information.The power information of UE, the buffer status information of UE etc. are represented in the MAC-e control information.The kind of the N field 1235 expression MAC-e control informations of k header portion 1215.For example, can use such as " 0 " that is used to fill, be used for power information " 1 ", be used for the predetermined value of " 2 " etc. of buffer status information as the value of the N field 1235 relevant with DDI field 1230.
Except type field, also the MAC-e control information is inserted among the MAC-e control SDU 1260.For example, under the situation of type 0, filling bit is inserted among the MAC-e control SDU 1260.Under the situation of Class1, power information 1270 (words of filling bit also have filling bit if desired) is inserted among the MAC-e control SDU 1260.Under the situation of type 2, will be used for representing that the buffer state reports (BSR) 1275 (filling bit also has filling bit if desired) of buffer state is inserted into MAC-e control SDU 1260.Although not open, can use more multi-form type here.
The applied system of the 3rd example implementation mode of the embodiment of the invention has and the identical structure of system shown in Fig. 4 A and the 4B.The operation of UE 402 and Node B 437 is described now with reference to Fig. 4 A and Fig. 4 B.
Figure 13 is the flow chart of diagram according to the operation of the UE 402 of the 3rd example implementation mode of the embodiment of the invention.
In step 1305, the E-DCH transmit control unit 425 of UE 402 triggers the transmission of MAC-e control information.In step 1310, E-DCH transmit control unit 425 utilizes the MAC-e control information to dispose MAC-e control SDU, and sends to this MAC-e control SDU multiplexed and TSN is provided with unit 430.In step 1315, multiplexed and TSN is provided with unit 430 and is set to special DDI value with the value that this MAC-e controls the DDI field of the corresponding MAC-e header portion of SDU.In step 1320, multiplexed and TSN is provided with unit 430 and is set to be illustrated in the value that MAC-e controls the kind of the control information that comprises among the SDU with the value that MAC-e controls the N field of the corresponding MAC-e header portion of SDU.Made Node B and UE know the kind of MAC-e control SDU and the value of the N field of correspondence.
Although it is not illustrated, the MAC-esPDU that comprises the RLC PDU that creates from RLC entity 405 can be sent to multiplexed and TSN is provided with unit 430.Multiplexed and TSN be provided with unit 430 based on the size of RLC PDU and/or number be provided with corresponding each header portion of MAC-es PDU in DDI field and N field.In step 1325, multiplexed and TSN is provided with unit 430 and disposes MAC-e PDU by MAC-e header, MAC-es PDU and the MAC-e control SDU cascade that will comprise the MAC-e header portion, sends this MAC-e PDU to Node B 437 by HARQ entity 435 and logical layer then.If the MAC-es PDU that will not transmit then transmits the MAC-e PDU that includes only MAC-e control SDU.
Figure 14 is the flow chart of diagram according to the operation of the Node B 437 of the 3rd example implementation mode of the embodiment of the invention.
In step 1405, Node B 437 receives the MAC-e PDU that comprises MAC-e header and MAC-e payload from UE 402, and the MAC-e PDU that is received is input in the demultiplexing unit 455.In step 1410, demultiplexing unit 455 is analyzed the MAC-e header of this MAC-e PDU, and the MAC-e payload that will comprise in this MAC-e PDU is divided into MAC-es PDU.
Demultiplexing unit 455 is checked the DDI field that is used for each MAC-es PDU.If there is the DDI field with special DDI value, then execution in step 1425, and if there is no, then execution in step 1420.When DDI field and described special DDI value not simultaneously, relevant MAC-es PDU is the common MAC-es PDU that utilizes TSN and RLC PDU configuration.Therefore, in step 1420, send MAC-es PDU to RNC 462.Otherwise when DDI was identical with described special DDI value, relevant MAC-esPDU was the MAC-e control SDU that comprises the MAC-e control information.Therefore, in step 1425, MAC-e is controlled SDU send E-DCH reception control unit 445 to.In the case, demultiplexing unit 455 reads the value with the corresponding N field of MAC-e control SDU, and determines whether this MAC-e control SDU comprises effective MAC-e control information, for example power information or buffer state reports.If this MAC-e control SDU comprises effective MAC-e control information, this is being notified to E-DCH reception control unit 445.E-DCH receives control unit 445 and check the MAC-e control information that comprises in MAC-e control SDU, and carries out suitable operation, for example is used for control information is sent to the operation of scheduler.
Effects more of the present invention will be described now, i.e. the demonstration effect that obtains by above-mentioned example embodiment.
According to example implementation mode of the present invention, because identical header portion is used for grouped data and MAC-e control information, therefore can as one man form the header structure of MAC-e PDU, make UE and Node B to transmit/to receive the MAC-e control information by MAC-e PDU simply, for example power information and buffer status information.In addition, because the MAC-e control information does not need extra header structure, therefore can under the situation that does not increase the MAC-e header size, transmit the MAC-e control information.
Although illustrate and described the present invention with reference to some example embodiment of the present invention, but those skilled in the art will appreciate that under the situation that does not deviate from the spirit and scope of the present invention that limit by claims and equivalent thereof, can carry out the change on various forms and the details therein.
Claims (24)
1. method that is used for transmitting the control information of uplink packet data service in mobile communication system, this method may further comprise the steps:
Formation comprises at least one first protocol Data Unit (PDU) of system for uplink packet data;
Formation comprises the control Service Data Unit (SDU) of the control information of uplink packet data service;
Form corresponding at least one first header portion by data description designator (DDI) field of using expression the one PDU and the N field that is illustrated in the system for uplink packet data number that comprises among the PDU with a PDU;
Be set to indicate the DDI field of the predetermined value that is transmitting control SDU to form and control corresponding second header portion of SDU by use; And
By header and payload cascade are formed the second packet unit (PDU), and send the 2nd PDU to Node B, wherein, header comprises described header portion, and payload comprises a PDU and control SDU.
2. the method for claim 1, wherein form control SDU and comprise the types value that uses the type that is illustrated in the control information that comprises among the control SDU, and wherein, the formation control information comprises optionally uses filling bit.
3. method as claimed in claim 2, wherein, described types value indicate to transmit the delivering power information, its buffer status information of the subscriber equipment (UE) of uplink packet Packet data service and fill in any.
4. the method for claim 1, wherein described control information comprises the delivering power information of the UE that will transmit uplink packet data service and at least one in its buffer status information.
5. the types value that the method for claim 1, wherein also comprises the kind that is illustrated in the control information that comprises among the control SDU with corresponding second header portion of control SDU.
6. the method for claim 1, wherein, the DDI field that is inserted into first header portion is represented media interviews control-data (MAC-d) stream relevant with the system for uplink packet data that comprises and the size of logic channel and system for uplink packet data in a PDU.
7. method that is used in the control information of mobile communication system receiving uplink Packet data service, this method may further comprise the steps:
Receive first protocol Data Unit (PDU) by using header and payload to form;
Based on the header portion that comprises in header and with the payload demultiplexing is a plurality of data cells;
Based on data description designator (DDI) field of the corresponding header portion of described data cell, described data cell is divided into the control Service Data Unit (SDU) of at least one the 2nd PDU that comprises system for uplink packet data and the control information that comprises uplink packet data service, wherein, the DDI field with the corresponding header portion of control SDU has been set to predetermined value; And
SDU obtains control information from control.
8. method as claimed in claim 7, wherein, described control SDU comprises types value, the control information of the kind that is illustrated in the control information that comprises among this control SDU and the filling bit that optionally uses.
9. method as claimed in claim 8, wherein, described types value represent to transmit the delivering power information, its buffer status information of the subscriber equipment (UE) of uplink packet data service and fill in any.
10. method as claimed in claim 7, wherein, described control information comprises the delivering power information of the UE that transmits uplink packet data service and at least one in its buffer status information.
11. method as claimed in claim 7 wherein, also comprises the types value that is illustrated in the kind of controlling the control information that comprises among the SDU with the corresponding header portion of control SDU.
12. method as claimed in claim 7, wherein, represent media interviews control-data (MAC-d) stream relevant and the size of logic channel and system for uplink packet data with the DDI field of the corresponding header portion of the 2nd PDU with the system for uplink packet data that in the 2nd PDU, comprises.
13. a subscriber equipment (UE) that is used for transmitting in mobile communication system the control information of uplink packet data service, this UE comprises:
At least one piece is used to form at least one first protocol Data Unit (PDU) that comprises system for uplink packet data;
Control unit is used to form the control Service Data Unit (SDU) of the control information that comprises uplink packet data service;
Multiplexed and transmission serial number (TSN) is provided with the unit, the N field that is used for data description designator (DDI) field by using expression the one PDU and is illustrated in the system for uplink packet data number that a PDU comprises forms corresponding at least one first header portion with a PDU, be set to indicate the DDI field of the predetermined value that is transmitting control SDU to form and control corresponding second header portion of SDU by use, and by header and payload cascade are formed the second packet unit (PDU), header comprises described header portion, payload comprises a described PDU and control SDU, wherein, send the 2nd PDU to Node B.
14. subscriber equipment as claimed in claim 13, wherein, described control unit forms control SDU by the filling bit that use is illustrated in the types value of the kind of the control information that comprises among the control SDU, described control information and optionally use.
15. subscriber equipment as claimed in claim 14, wherein, described types value indicate to transmit the delivering power information, its buffer status information of the subscriber equipment (UE) of uplink packet data service and fill in any.
16. subscriber equipment as claimed in claim 13, wherein, described control information comprises the delivering power information of the UE that will transmit uplink packet data service and at least one in its buffer status information.
17. subscriber equipment as claimed in claim 13 wherein, also comprises the types value that is illustrated in the kind of controlling the control information that comprises among the SDU with corresponding second header portion of control SDU.
18. subscriber equipment as claimed in claim 13, wherein, the DDI field that is inserted into first header portion is represented media interviews control-data (MAC-d) stream relevant with the system for uplink packet data that comprises and the size of logic channel and system for uplink packet data in a PDU.
19. a Node B that is used for receiving in mobile communication system the control information of uplink packet data service, this Node B comprises:
Demultiplexing unit, be used to receive first protocol Data Unit (PDU) that comprises header and payload, based on the header portion of header and with the payload demultiplexing is a plurality of data cells, and based on data description designator (DDI) field of the corresponding header portion of described data cell, described data cell is divided into few one the 2nd PDU and control Service Data Unit (SDU), described the 2nd PDU comprises system for uplink packet data, described control SDU comprises the control information of uplink packet data service, and wherein the DDI field with the corresponding header portion of control SDU has been set to predetermined value; And
Control unit is used for obtaining control information from control SDU.
20. Node B as claimed in claim 19, wherein, described control SDU comprises types value, the control information of the kind that is illustrated in the control information that comprises among this control SDU and the filling bit that optionally uses.
21. Node B as claimed in claim 20, wherein, described types value represent to transmit the delivering power information, its buffer status information of the subscriber equipment (UE) of uplink packet data service and fill in any.
22. Node B as claimed in claim 19, wherein, described control information comprises the delivering power information of the UE that transmits uplink packet data service and at least one in its buffer status information.
23. Node B as claimed in claim 19 wherein, also comprises the types value that is illustrated in the kind of controlling the control information that comprises among the SDU with the corresponding header portion of control SDU.
24. Node B as claimed in claim 19, wherein, represent media interviews control-data (MAC-d) stream relevant and the size of logic channel and system for uplink packet data with the DDI field of the corresponding header portion of the 2nd PDU with the system for uplink packet data that in the 2nd PDU, comprises.
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| KR1020040109938A KR100880986B1 (en) | 2004-11-09 | 2004-12-21 | Method and apparatus for transmiting/receiving control information of uplink packet data service in mobile telecommunication system |
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| PCT/KR2005/003790 WO2006052085A1 (en) | 2004-11-09 | 2005-11-09 | Method and apparatus for signaling control information of uplink packet data service in mobile communication system |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR100880986B1 (en) | 2009-02-03 |
| KR20060042858A (en) | 2006-05-15 |
| CN101061686B (en) | 2010-12-15 |
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