CN100461676C - Reporting method of the scheduling information in the high-speed uplink packet access - Google Patents

Abstract

The invention relates to mobile communication technique, disclosing a method for reporting scheduling information (SI) in high speed uplink packet access (HSUPA), raising wireless resources utilization ratio as reporting SI. In the invention, if the current periodical SI reporting needs to consume extra wireless resources and there has been or is possibly SI reporting caused by other reasons in the time period about the triggering time of the periodical SI reporting, neglecting the current periodical SI reporting. And it has three concrete modes of: 1. monitoring a preset time period before the periodical triggering time: if there has been SI reporting, able to neglect the current periodical reporting; 2. neglecting the current periodical reporting and monitoring the SI reporting condition in the following preset time period: if no SI reporting, then making a supplementary reporting; and 3. whenever reporting SI, delaying each following periodical reporting.

Description

Method for submitting scheduling information during high speed uplink packet inserts

Technical field

The present invention relates to mobile communication technology, particularly high-speed uplink packet access technique.

Background technology

Third generation partner program (3rd Generation Partnership Project, abbreviation " 3GPP ") vital tissue as moving communicating field has promoted 3G (Third Generation) Moblie (The Third Generation, be called for short " 3G ") standardization effort of technology, the carrying of uplink and downlink business all is based on dedicated channel in its early stage protocol version.

Along with the development of mobile communication technology, 3G technology is also in constantly development evolution.High speed downlink packet inserts (High Speed Downlink Packet Access is called for short " HSDPA ") and high speed uplink packet access (High Speed Uplink Packet Access is called for short " HSUPA ") is exactly the important evolution of 3G technology.The scheduling of the packet among HSDPA and the HSUPA and re-transmission etc. are controlled by base-station node (Node B).

Wherein, HSDPA was introduced in 3GPP the 5th edition as down high-speed data bag access technology, and (Release 5 in 2002, abbreviation " R5 ") in the version, and 3GPP the 6th edition (Release 6, abbreviation " R6 ") carried out in partly improving, it adopts 2 milliseconds of shorter (ms) Transmission Time Intervals (Transmission Timing Interval is called for short " TTI "), to realize quick self-adapted control.Use adaptive coding and modulation (Adaptive Modulation and Coding is called for short " AMC ") and mix automatic repeat requests (Hybrid Auto Repeat reQuest is called for short " HARQ ") in physical layer.

HSUPA is called the dedicated channel (Enhanced Dedicated Channel, be called for short " E-DCH ") of enhancing again, as the high speed uplink data packet access technique, also has been incorporated among the 3GPPR6 in 2004.Similar with HSDPA, HSUPA has also adopted 2ms TTI and shorter frame length to realize quick self-adapted control, use HARQ and based on the fast uplink dispatching technique of Node B, improved up spectrum efficiency, also have remarkable advantages such as uplink speed is fast, propagation delay time is little, thereby provide more effective support for the application of grouping data services such as real-time game business, file are uploaded, broadband multimedia services.

In addition, extensively adopted for the third generation air interface technologies of the 3G of representative with universal mobile telecommunications system (Universal Mobile TelecommunicationSystem is called for short " UMTS ").The effect of Radio interface protocols is to set up, reconfigure and the releasing wireless loading business, for example, the universal mobile telecommunications system terrestrial wireless inserts (UMTS Terrestrial Radio Access, abbreviation " UTRA ") Frequency Division Duplexing (FDD) (Frequency Division Duplex, be called for short " FDD ")/time division duplex (TimeDivision Duplex is called for short " TDD ") business.Agreement relevant with HSDPA in wireless air interface (Uu interface) is from control plane, mainly be divided into three layers: physical layer (Physical) is ground floor, media access control protocol layer (Medium Access Control, be called for short " MAC ") and radio link control (Radio Link Control, abbreviation " RLC ") layer is the second layer, and corresponding radio resource control protocol (Radio Resource Control is called for short " RRC ") layer is the 3rd layer.

Physical layer provides service by transmission channel to the MAC layer, and wherein, the feature of transmission channel is by the type and the characteristics determined of its transmission data; The MAC layer provides service by logic channel to rlc layer, and the feature of logic channel also is to be determined by the data type that sends; Rrc layer uses the business of rlc layer to come command transmitting.

In the MAC layer, logic channel is mapped as transmission channel.The MAC layer also according to the moment source speed of logic channel, is the suitable transformat of each transmission channel selection (Transport Format is called for short " TF ").The selection of TF is controlled to be each TF combination of sets that is connected definition with admittance and is closely related.

Wherein, at subscriber equipment (User Equipment, be called for short " UE ") and universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial Radio Access Network, abbreviation " UTRAN ") the MAC layer structure of the E-DCH of side distinguished as depicted in figs. 1 and 2, and the MAC layer of E-DCH also comprises MAC-e and two sublayers of MAC-es.The MAC-e entity of UTRAN side is in Node B, and the MAC-es entity is in service wireless network controller (Serving Radio Network Controller is called for short " SRNC "), and the MAC-e entity of UE side and MAC-es entity are in same functional unit.

MAC-e protocol Data Unit in the MAC-e entity (Protocol Data Unit, abbreviation " PDU ") structure as shown in Figure 3, the payload part of MAC-e PDU comprise a plurality of multiplexing together MAC-es PDU, optionally be used for schedule information (the Scheduling Information of 18 bits of up fast packet scheduling, be called for short " SI "), and be used to make the length of MAC-e PDU to equal the possible filling field of the E-DCH transport block length of appointment; The head of MAC-e PDU is then indicated (Data Description Indicator by the data description of corresponding 6 bits of each MAC-es PDU, abbreviation " DDI ") the N field of field and 6 bits constitutes, and optionally is used to identify the DDI that MAC-e PDU head finishes ₀Field.Wherein, the DDI field is used to refer to the size of the MAC-d PDU of MAC-es PDU cascade; The N field is used to refer to the number of the MAC-dPDU of a MAC-es PDU cascade.

According to 3GPP protocol specification TS25.321, whether the form basis of MAC-e PDU transmits the size of SI and remaining bits number (D), it is relevant to be that the E-DCH transport block length deducts bit number remaining after the length of the contained n of a MAC-e PDU MAC-es PDU and corresponding n DDI field and n N field, has following four kinds of structures:

(1) transmit separately under the situation of SI, whole M AC-e PDU promptly is made of the SI of this 18 bit long, and the structure of MAC-e PDU in this case as shown in Figure 4;

(2) as D during less than 18 bits, then do not transmit SI, remaining bits is a filling bit, and the structure of MAC-e PDU in this case as shown in Figure 5;

(3) when D more than or equal to 18 bits, and during less than 24 bits, then with SI directly level be associated in the end of MAC-es PDU, remaining bits is this SI and filling bit (0-5 bit), the structure of MAC-e PDU in this case as shown in Figure 6;

(4) as D during, then the SI level is associated in the end of MAC-es PDU more than or equal to 24 bits, and at the additional DDI of the end of MAC-e PDU head ₀=" 111111 ", remaining bits are this SI, DDI ₀Field and filling bit, the structure of MAC-e PDU in this case as shown in Figure 7.

According to 3GPP protocol specification TS25.321, when UE is in the state that does not allow to send data, promptly authorization of service (Serving Grant is called for short " SG ") parameter is " Zero_Grant "; Perhaps all be in non-active state when all HARQ processes, have new data to need to send in the up data buffer, and UE is in when allowing to send the state of data, in both cases, UE all can trigger the SI report.

Specifically, when UE is in when not allowing or allowing to send the state of data, the SI report mainly is based on certain cycle triggering, this triggering cycle is by information element (InformationElement in the RRC message, be called for short " IE ") " Periodicity for scheduling Info-grant (schedule information cycle-mandate) " and " Periodicity for scheduling Info-no grant (schedule information cycle-unauthorized) " defined, for example, be 2ms, 4ms, 10ms, 20ms, 50ms, 100ms, 200ms, 500ms or 1000ms equivalence.The SI triggering cycle is to be handled information such as resource situation to determine based on the scheduling strategy of E-DCH and Node B by system.In addition, according to this standard, the SI report can also be by other Event triggered.

In actual applications, there is following problem in such scheme: the wireless resource utility efficiency during SI reporting is lower.

Cause the main cause of this situation to be,, must take certain ascending wireless resource in case, just must adopt transmission separately or transmit this SI report with data multiplex common mode that sends on MAC-e PDU because the SI report is triggered.

In addition, when the SI report sends on MAC-e PDU jointly with the data multiplex that needs transmission, if the D of MAC-e PDU is less than 18 required bits of multiplexing SI, to cause using bigger E-DCH transmission block so, and then will fill, thereby waste more Radio Resource to the remaining bits that produces therefrom.

Summary of the invention

In view of this, main purpose of the present invention is to provide method for submitting scheduling information in a kind of high speed uplink packet access, and the wireless resource utility efficiency when making SI reporting is improved.

For achieving the above object, the invention provides method for submitting scheduling information in a kind of high speed uplink packet access, comprise following steps:

Subscriber equipment reports triggering constantly in the periodicity of schedule information, if periodically reporting with this, the last moment that sends schedule information triggers difference constantly less than the threshold value that presets, and current D＜18 of waiting to send out the MAC-e protocol Data Unit, then ignore reporting of this schedule information, otherwise report this schedule information;

Wherein, described D deducts remaining bit number after the length of all contained in MAC-e protocol Data Unit MAC-es protocol Data Units and corresponding data description indication field and N field for the dedicated channel transport block length that strengthens.

Wherein, the cycle duration that reports less than described periodicity of described threshold value.

The present invention also provides method for submitting scheduling information in a kind of high speed uplink packet access, comprises following steps:

Subscriber equipment reports triggering constantly in the periodicity of schedule information, if current D＜18 of waiting to send out the MAC-e protocol Data Unit are then ignored reporting of this schedule information, otherwise reported this schedule information;

From ignore reporting scheduling information periodically the time scheduled duration after being carved in, if do not report schedule information, then after arriving this scheduled duration, report up-to-date schedule information immediately;

Wherein, described D deducts remaining bit number after the length of all contained in MAC-e protocol Data Unit MAC-es protocol Data Units and corresponding data description indication field and N field for the dedicated channel transport block length that strengthens.

Wherein, the cycle duration that reports less than described periodicity of described scheduled duration.

The present invention also provides method for submitting scheduling information in a kind of high speed uplink packet access, comprises following steps:

Subscriber equipment restarts after timer resetted behind reporting scheduling information each time; If this timer expiry then reports up-to-date schedule information; Wherein, this length of timer is the cycle duration of periodicity reporting scheduling information.

By relatively finding, the main distinction of technical scheme of the present invention and prior art is, if reporting, this second periodicity SI needs consume extra wireless resources, and periodically SI reports and triggers near the time period existingly or have the SI that other reason causes and report constantly, then ignores this second periodicity SI and reports.Can whether count D less than 18 by the more current remaining bits of sending out MAC-e PDU of waiting, judge whether need consume extra wireless resources ability SI reporting.Report chance because made full use of the SI that does not consume extra Radio Resource, reduced the number of times of unnecessary periodicity SI reporting,, optimized wireless resource utility efficiency so reduced the consumption of the Radio Resource that brings because of transmission SI.

Three kinds of modes are specifically arranged: a kind of is the preceding constantly predetermined amount of time of monitoring periods triggering, reports then as existing SI and can ignore this periodic report.Another kind is to ignore current periodic report, and monitoring SI reports situation in predetermined amount of time after this, does not repay if there is SI to report again.Also having a kind of is that SI reporting just reports the moment to postpone simultaneously each periodicity after this each time.These three kinds of modes can report technology compatible better with existing SI.Before dual mode do not influence each moment of reporting of SI periodically, and can guarantee that time interval that any twice SI reports is no more than cycle duration and adds predetermined amount of time.A kind of mode in back can guarantee that the time interval that any twice SI reports is no more than cycle duration.So these three kinds of modes can satisfy the demand that network side is in time understood the SI information of UE when reducing radio resource consumption.

Description of drawings

Fig. 1 is the MAC layer structural diagrams intention of the E-DCH of UE in the prior art;

Fig. 2 is the MAC layer structural diagrams intention of the E-DCH of network side in the prior art;

Fig. 3 is a MAC-e PDU structural representation in the MAC-e entity in the prior art;

Fig. 4 only sends under the situation of SI MAC-e PDU structural representation in the MAC-e entity in the prior art;

Fig. 5 is a MAC-e PDU structural representation in MAC-e entity when D is less than 18 bits in the prior art;

Fig. 6 be in the prior art D more than or equal to 18 bits MAC-e PDU structural representation in the MAC-e entity during less than 24 bits;

Fig. 7 is a MAC-e PDU structural representation in MAC-e entity when D is more than or equal to 24 bits in the prior art;

Fig. 8 is a SI report method schematic diagram during high speed uplink packet of the present invention inserts;

Fig. 9 is according to SI report method flow chart in the high speed uplink packet access of first embodiment of the invention;

Figure 10 is according to SI report method flow chart in the high speed uplink packet access of second embodiment of the invention;

Figure 11 is according to SI report method flow chart in the high speed uplink packet access of third embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

The present invention is when reporting that at SI existing trigger condition satisfies, and UE determines whether sending this SI report according to the real-time of this SI report and current can be used to the size of the D of the multiplexing MAC-e PDU of this SI.

Specifically, the trigger condition of SI report mainly is divided into cycle triggering and Event triggered two classes.Wherein, the real-time of Event triggered is had relatively high expectations, in a single day Event triggered SI report is promptly arranged, and UE should transmit this SI report as far as possible immediately and delay can not be arranged; And the SI report that the cycle triggers is relatively low to the real-time requirement, particularly when cycle duration is big.

Wherein, trigger in the cycle under the triggering mode of SI report, T0_timeout time before triggered time in cycle point and/or the T1_timeout after triggered time in cycle point are in the time, if the size of the D of MAC-e PDU must be carried under the situation of SI more than or equal to 18 bits, whether then UE further judges among the MAC-e PDU in the TTI of this point in triggered time in cycle has enough remaining bits can supply the SI transfer bandwidth, if have, then in the current SI information of this TTI transmission, otherwise not in this TTI transmission SI information, and T0_timeout time before triggered time in cycle point and/or the T1_timeout after triggered time in cycle point are in the time, by from the size of the D of the nearest MAC-e PDU of this point TTI more than or equal to 18 bits in triggered time in cycle, transmission SI information, its trigger theory as shown in Figure 8.

The SI report method as shown in Figure 9 during the high speed uplink packet of first embodiment of the invention inserted.

In step 901, UE judges whether that the periodicity of SI reports triggering constantly, if then change step 902 over to; Otherwise, return step 901.

In step 902, UE judge the last SI of transmission the time be carved into this and periodically report and whether trigger time difference constantly less than default threshold T 0_timeout, and current D＜18 of waiting to send out the MAC-e protocol Data Unit are if then change step 903 over to; Otherwise, change step 904 over to.Wherein, T0_timeout is less than the cycle duration that periodically reports.

Whether less than 18, judge whether need consume extra wireless resources ability SI reporting by the more current D that waits to send out MAC-e PDU.Specifically, if D＜18, if think that then this moment SI reporting will cause adopting bigger E-DCH transmission block to transmit this MAC-e PDU and SI, this will need more Radio Resource to support this transmission.

In step 903, because this second periodicity SI reports and needs consume extra wireless resources, and periodically SI reports and triggers near the time period existingly or have the SI that other reason causes and report constantly, and UE ignores this second periodicity SI and reports, and returns step 901.Need the SI that consumes extra Radio Resource to report number of times by reducing, and then reduce the consumption of the Radio Resource that brings because of transmission SI, optimized wireless resource utility efficiency.

In step 904, UE sends the SI of this cycle triggering, also returns step 901 then.

The SI report method as shown in figure 10 during the high speed uplink packet of second embodiment of the invention inserted.

Step 1001 is similar to step 901.

In step 1002, if D＜18 of MAC-e protocol Data Unit in the nearest TTI then change step 1003 over to; Otherwise, change step 1004 over to.

Step 1003 and step 1004 also are similar to step 903 and step 904 respectively, repeat no more herein.

In step 1005, from ignore SI reporting periodically the time scheduled duration (T1_timeout) after being carved in, if do not report SI, after arriving T1_timeout, then change step 1006 over to; Otherwise, return step 1001.

Wherein, T1_timeout is less than the cycle duration that periodically reports.

In step 1006, when arriving T1_timeout, UE reports the SI in this moment immediately, also returns step 1001 then.

The SI report method as shown in figure 11 during the high speed uplink packet of third embodiment of the invention inserted.

In step 1101, judge the current whether SI reporting of UE, if then change step 1102 over to; Otherwise, change step 1103 over to.

In step 1102,, reset immediately and restart the timer of control SI periodic report in case UE has reported SI.Wherein, the timing length of this timer is the periodically cycle duration of SI reporting.

In step 1103, if the timer expiry of control SI periodic report then changes step 1104 over to; If the timer of control SI periodic report is not overtime, then return step 1101.

In step 1104, when the timer expiry of control SI periodic report, UE promptly sends current SI report, also returns step 1101 then.

Generally speaking, three kinds of above-mentioned execution modes can report technology compatible better with existing SI.Preceding two kinds of execution modes do not influence each moment of reporting of SI periodically, and can guarantee that time interval that any twice SI reports is no more than cycle duration and adds predetermined amount of time.Last a kind of execution mode can guarantee that the time interval that any twice SI reports is no more than cycle duration.In addition, these three kinds of execution modes can satisfy the demand that network side is in time understood the SI information of UE when reducing radio resource consumption.

Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims (2)

1. method for submitting scheduling information during a high speed uplink packet inserts is characterized in that, comprises following steps:

Subscriber equipment reports triggering constantly in the periodicity of schedule information, if periodically reporting with this, the last moment that sends schedule information triggers difference constantly less than the threshold value that presets, and current D＜18 of waiting to send out the MAC-e protocol Data Unit, then ignore reporting of this schedule information, otherwise report this schedule information, the cycle duration that described threshold value reports less than described periodicity;

Wherein, described D deducts remaining bit number after the length of all contained in MAC-e protocol Data Unit MAC-es protocol Data Units and corresponding data description indication field and N field for the dedicated channel transport block length that strengthens.

2. method for submitting scheduling information during a high speed uplink packet inserts is characterized in that, comprises following steps:

Subscriber equipment reports triggering constantly in the periodicity of schedule information, if current D＜18 of waiting to send out the MAC-e protocol Data Unit are then ignored reporting of this schedule information, otherwise reported this schedule information;

From ignore reporting scheduling information periodically the time scheduled duration after being carved in, if do not report schedule information, then after arriving this scheduled duration, report up-to-date schedule information immediately, the cycle duration that described scheduled duration reports less than described periodicity;

Wherein, described D deducts remaining bit number after the length of all contained in MAC-e protocol Data Unit MAC-es protocol Data Units and corresponding data description indication field and N field for the dedicated channel transport block length that strengthens.

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