CN100512498C

CN100512498C - Communication method for mobile terminal and base station

Info

Publication number: CN100512498C
Application number: CNB2006101095428A
Authority: CN
Inventors: 李强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-08-08
Filing date: 2006-08-08
Publication date: 2009-07-08
Anticipated expiration: 2026-08-08
Also published as: CN1909734A

Abstract

The invention relates to a communication method between mobile terminal and base station, which comprises: the base station reports the processing level information to the base station controller; the controllers based on said processing level, inquires the repeated short frame times of strengthen ascending special transmission channel of strengthen ascending special transmission channel; the controller distributes the repeated short frame times via the repeated short frame times to the base station and mobile terminal; the base station based on the repeated short frame times calculates out the processing time; the mobile terminal based on the strengthen ascending special transmission channel relative priority channel repeated short frame times, receives and processes the strengthen ascending special transmission channel relative priority channel information; therefore, the invention can distribute right processing time to the base station, via setting E-RGCH idle transmission kept time, without affecting the reliability of E-RGCH, to realize the adjustment on MAC-E, to confirm the property of MAC-E distribution.

Description

The communication means of portable terminal and base station

Technical field

The present invention relates to the communication means of a kind of portable terminal and base station, especially a kind of rank according to the base station, portable terminal sends the communication means of different short frame number of times.

Background technology

Along with development of times, the communication technology is development thereupon also, and third generation wireless telecommunications (3G) have also entered the application stage.

The high speed uplink bag inserts (High Speed Downlink Packet Access, HSUPA) be WCDMA (Wideband Code Division Multiple Access among the 3G, Wideband Code Division Multiple Access (WCDMA)) the important new feature in the standard, with respect to original R99 characteristic, have following new features:

1, ring affirmation mechanism in the upstream data between portable terminal (UE) and WCDMA base station (NodeB).UE sends up E-DCH enhancement mode (up) dedicated transmission channel (Enhanced DedicatedTransport Channel, E-DCH) data, NodeB receives data block and confirms, produce confirmation (Acknowledgement, ACK)/deny information (Negative Acknowledgement, NACK), and directly by descending E-DCH HARQ (Hybrid Automatic Repeat Request, mix automatically and retransmit) answering indication signal channel (E-DCH HARQ Acknowledgement Indicator Channel, E-HICH) give UE with this feedback information, changing original elder generation confirms again by sending data transmission block (Transport Block through WCDMA system base-station controller (RNC), TB) mode of confirmation, can reduce the affirmation time delay of data like this, improve the efficiency of transmission of eating dishes without rice or wine.

2, enhancement mode (up) Dedicated Physical Data Channel (E-DCH Dedicated Physical DataChannel, E-DPDCH) data-transmission mode.For initial transmission and the data that repeat to transmit, UE changes its system for transmitting bit characteristic and the rate-matched characteristic strengthens the effect that recipient (NodeB) data merge, and improves to retransmit gain.

3, MAC-e (Medium Access Control for E-DCH, the medium access control entity that is used for the E-DCH function) scheduling, (the adjustment granularity is that Transmission Time Interval (Transmission Time Interval, TTI)) distributes the maximum of adjusting each user can send mandate fast by NodeB.Carrying out MAC-e scheduling one by NodeB is the situation of change of ascending load of cell can be fed back the guides user authorized appropriation fast; The 2nd, realize that better ascending resource is shared between the user.

4, improve user's available physical channel capacity limitation ability.Can support (up) Dedicated Physical Data Channel (Dedicated Physical DataChannel of 3 SF4 at most with respect to the R99 special uplink channel, DPDCH), HSUPA allows user's maximum can adopt the E-DPDCH of 2 SF2+2 SF4, theoretic like this physical layer information bit transmittability just is doubled, under the good application scenario of channel circumstance, improve user rate by this technology.

5, lack frame mechanism, the primary stage is 10ms TTI, and agreement has also been stipulated the more 2ms TTI mechanism of high-stage.With the TTI of R99 is that 10ms, 20ms, 40ms, 80ms compare, and introduces the short frame of 10ms and even 2ms and can reduce the data time delay of eating dishes without rice or wine, and improves user's impression, also can better adapt to the application scenario that ascending load of cell changes rapidly in addition.

In new features as above, the MAC-e scheduling is a core technology wherein, and it mainly acts on and is: the fast adaptation user's request; Rationally adjust authorization message between the user, improve the resource utilization of whole system.Therefore, the MAC-e scheduling performance has just determined the height of whole system HSUPA service feature.

MAC-e scheduling and using is actually to be cooperated by NodeB and UE and finishes, and as shown in Figure 1, is the flow chart of the engagement process of a closed loop, and detailed step is as follows:

Step 801, UE are according to current authorization of service SG, instruct and select E-TFC, eating dishes without rice or wine to send enhancement mode (up) Dedicated Physical Control Channel (E-DCH Dedicated Physical Control Channel, E-DPCCH) and uplink channel information such as E-DPDCH, corresponding definite power proportions usedpower ratio of this E-TFC;

Step 802, NodeB resolve E-DPCCH information, and E-DPDCH information is deciphered;

Each UE information that the MAC-e scheduler of step 803, NodeB will be resolved after the decoding gathers, and in conjunction with cell uplink received bandwidth total power (Received total wide band power, RTWP) information such as load, according to the algorithm of determining each UE is carried out prioritization and resource allocation, formation is handed down to relative authorization RG information or the absolute grant AG information of each UE, is used to refer to maximum transmission of the E-DCH that distributes to UE and authorizes;

The relative authorization that step 804, UE receive and parsing NodeB sends (Relative Grant, RG)/absolute grant (Absolute Grant, AG) information, and the update service mandate (Serving Grant, SG).If AG information, UE directly upgrades its authorization of service SG=AG; If RG information, the formula of update service mandate is SG=Last used power ratio+RG, (Last used powerratio is exactly the used power ratio in the above-mentioned steps 1 herein).UE upgrades after the SG, and this closed loop procedure finishes, again from step 8011 beginning another one closed loop procedure.

Determine closed loop procedure total time, closed loop process total time=(maximum process is counted the * process unit interval), for HSUPA 10ms used, total time was (4 * 10)=40ms.Process total time can be decomposed into following several sections:

1, single frames E-DPCCH/E-DPCCH eats dishes without rice or wine to continue transmission;

2, NodeB utilizes time T p to receive, and available HSUPA processing time T1 comprises information analysis decoding and MAC-E scheduling etc.;

3, (E-DCH Relative Grant Channel E-RGCH) eats dishes without rice or wine to continue transmission to single frames E-DCH relative authorization channel;

4, UE utilizes time T p to receive available HSUPA processing time T2;

5, two-way signaling transmission path delay between NodeB and UE.

Be illustrated in figure 2 as the MAC-e scheduling and use the closed-loop process schematic diagram.

Main points are exactly fair ordering and the resource allocation that guarantees between each user in the MAC-E scheduling performance, realize that some NodeB should be the cycle according to sub-frame interval, carry out the whole scheduling processing of MAC-E after all users' information decoding is finished and gathered.

For realizing all whole user scheduling of NodeB, according to current agreement, in above-mentioned engagement process, the most nervous is that NodeB can use HSUPA processing time T1.For more current NodeB realize framework, because disposal ability is limit, can't accomplish both to have realized the whole user scheduling, satisfy the requirement of closed loop promptness again, therefore select for use the mode of certain customers' scheduling to satisfy the requirement of closed loop promptness in turn by timesharing, but this scheduling promptness and fairness for MAC-E is very disadvantageous, and the MAC-E scheduling performance is influenced.

Summary of the invention

The objective of the invention is under the prerequisite that does not influence the E-RGCH transmission reliability, give NodeB, realize the whole scheduling of MAC-E with the suitable processing time.

For achieving the above object, the invention provides the communication means of a kind of portable terminal and base station, may further comprise the steps:

Step 1, base station report the processing class information of this base station to base station controller; Step 2, described base station controller are inquired about the enhanced uplink dedicated transmission channel relative authorization channel repeated short frame times of enhanced uplink dedicated transmission channel Radio Link collection according to the processing rank of this base station;

Step 3, described base station controller are given described base station and portable terminal with the repeated short frame times that inquires by the repeated short frame times information configuration;

Step 4, described base station is according to the repeated short frame times calculating treatmenting time;

Step 5, described portable terminal carries out the reception and the processing of enhanced uplink dedicated transmission channel relative authorization channel information according to the described enhanced uplink dedicated transmission channel relative authorization channel repeated short frame times of configuration.

Described step 1 is specially described base station and reports to base station controller, includes the processing class information of the processing rank cell that meets base station controller and inter-base station interface agreement.Wherein said step 3 is specially described base station controller with the repeated short frame times that inquires, and gives described base station by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and inter-base station interface agreement; Described base station controller is given described portable terminal with the repeated short frame times that inquires by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and portable terminal interface agreement.Described step 4 also comprises: the compensation power biasing that enhanced uplink dedicated transmission channel relative authorization channel sends is calculated according to repeated short frame times in described base station.

Therefore, the communication means of portable terminal of the present invention and base station is at HSUPA 10ms TTI application scenarios, under the prerequisite that does not influence the E-RGCH transmission reliability, by being set, E-RGCH eats dishes without rice or wine the transmitting continuous time, give NodeB with the suitable processing time, realize the scheduling of MAC-E integral body, thereby guarantee the performance of MAC-E scheduling.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Description of drawings

Figure 1 shows that the flow chart of engagement process of a closed loop of prior art;

Fig. 2 is MAC-e scheduling and an application closed-loop process schematic diagram in the prior art;

Fig. 3 is the flow chart of the communication means of portable terminal of the present invention and base station.

Embodiment

The present invention is provided with E-RGCH and eats dishes without rice or wine the transmitting continuous time under the prerequisite that does not influence the E-RGCH transmission reliability, gives NodeB with the suitable processing time, realizes the whole scheduling of MAC-E.

Current for HSUPA 10ms TTI application scenarios, with in MAC-E scheduling and application closed loop procedure, it is that the RG that belongs to service E-DCH RLS forms and sends that the NodeB processing time is required the strictest situation, in this case, requiring E-RGCH information transmitting continuous time of eating dishes without rice or wine is the short frame of 2ms that 4 information repeat, 8ms altogether.

As shown in table 1, the present invention is provided with the short frame number of times of different repetition 2ms according to the rank of different N odeB by RNC.

NodeB handles rank	Repeat the short frame number of times of 2ms
NodeB handles rank	Repeat the short frame number of times of 2ms	The highest	4
High	3	The highest	4
High	3	In	2
Low	1	In	2

Table 1, the relation that is provided with of different N odeB rank and the short frame number of times of different repetition 2ms

Report the processing rank by NodeB, RNC is provided with the short frame number of times of different repetition 2ms to NodeB according to the NodeB ability, and the short frame number of times of the repetition 2ms that will be provided with is notified to UE.

For the highest following processing rank, the repetition 2ms that reduces is short, and frame duration all gives NodeB, thereby make NodeB can realize all whole user scheduling of MAC-E, simultaneously for this situation, NodeB can increase the E-RGCH channel transmitting power, thereby the information that compensation brings because number of repetition reduces detects performance loss.

As shown in Figure 3, be the flow chart of the communication means of portable terminal of the present invention and base station, detailed step is as follows:

Step 101, NodeB reports the processing class information of this NodeB to RNC;

This step can be specially described base station and report to base station controller, includes the processing class information of the processing rank cell that meets base station controller and inter-base station interface agreement; Step 102, described RNC inquires about enhanced uplink dedicated transmission channel Radio Link collection (Radio LinkSet, E-RGCH repeated short frame times RLS) according to the processing rank of this NodeB;

Step 103, described RNC gives described NodeB and portable terminal with the repeated short frame times that inquires by the repeated short frame times information configuration;

This step can be specially described base station controller with the repeated short frame times that inquires, and gives described base station by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and inter-base station interface agreement; Described base station controller is given described portable terminal with the repeated short frame times that inquires by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and portable terminal interface agreement;

Step 104, described NodeB is according to the repeated short frame times calculating treatmenting time;

And described NodeB can also calculate the compensation power biasing that E-RGCH sends according to repeated short frame times;

Step 105, described UE carries out the reception and the processing of E-RGCH information according to the described E-RGCH repeated short frame times of configuration.

NodeB reports the processing rank to obtain to be fit to HSUPA processing up duration according to the ability of self, for high level NodeB, can increase the E-RGCH repeated short frame times, thereby save the transmitting power of respective channels signal; For low-level NodeB, can reduce the E-RGCH repeated short frame times, thereby obtain more up duration by the method that increases E-RGCH channel signal transmitting power, realize all whole user scheduling of MAC-E, guarantee the performance of MAC-E scheduling.

It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.

Claims

1, the communication means of a kind of portable terminal and base station is characterized in that may further comprise the steps:

2, the communication means of portable terminal according to claim 1 and base station, it is characterized in that described step 1 is specially described base station and reports to base station controller, include the processing class information of the processing rank cell that meets base station controller and inter-base station interface agreement.

3, the communication means of portable terminal according to claim 1 and base station, it is characterized in that described step 3 is specially described base station controller with the repeated short frame times that inquires, give described base station by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and inter-base station interface agreement; Described base station controller is given described portable terminal with the repeated short frame times that inquires by the repeated short frame times information configuration that includes the repeated short frame times cell that meets base station controller and portable terminal interface agreement.

4, according to the communication means of claim 1,2 or 3 described portable terminals and base station, it is characterized in that described step 4 also comprises: the compensation power biasing that enhanced uplink dedicated transmission channel relative authorization channel sends is calculated according to repeated short frame times in described base station.