CN101203050B - Method and device for locating resource scheduling problems - Google Patents

Abstract

The invention relates to the field of wireless communication technology, particularly relating to the positioning technology on a problem of resource scheduling. The embodiment of the invention also discloses a positioning method and a device for the problem of resource scheduling, which can be used for simplifying the positioning environment and quickening the positioning speed. The positioning method for the problem of resource scheduling comprises that when problems occur in resource scheduling, executing results of resource distribution information, sent from user equipment to a base station, are then detected. The resource distribution information sent from the base station is ensured and deployed according to the foreseen result of resource scheduling. The problem of a data transmission link from the base station to the user equipment can be positioned according to the inconsistency between the executing result and the foreseen result. The positioning device for the problem of resource scheduling comprises a detection unit and a problem positioning unit.

Description

Method and device for locating resource scheduling problems

technical field

The present invention relates to the technical field of wireless communication, in particular to a resource scheduling problem positioning technology.

Background technique

With the development of communication technology, there is a higher requirement for the data transmission rate provided by the wireless communication system. How to improve resource utilization under limited resources has become one of the key issues in the wireless communication system.

Resource scheduling can significantly improve the resource utilization and cell throughput of the wireless communication system. The High Speed Uplink Packet Access introduced in Release 6 (R6) by the WCDMA (Wideband Code Division Multiple Access) technical standard, HSUPA) technology is used as an example to introduce resource scheduling methods in the prior art. Compared with the original Release 99 (R99) version, HSUPA technology introduces the following new features:

In order to support high-speed data services, HSUPA technology introduces new physical channels, including E-DCH (Enhanced Dedicated Transport Channel, Enhanced Dedicated Transport Channel) dedicated physical data channel (E-DCH Dedicated Physical Data Channel, E-DPDCH), E-DCH -DCH Dedicated Physical Control Channel (E-DCH Dedicated Physical Control Channel, E-DPCCH) and E-DCH HARQ Acknowledgment Indicator Channel (E-DCH HARQ Acknowledgment Indicator Channel, E-HICH), etc. E-DPDCH is used to carry E-DCH uplink data, and the spreading factor can be 64, 32, 16, 8, 4, 2. The user equipment (User Equipment, UE) in HSUPA technology can be flexibly selected according to the needs of the business. HSUPA A UE in the technology may be referred to as a HSUPA UE. The maximum rate of single-code channel transmission is 1.92Mbit/s, and multi-code channel transmission is allowed. Users can transmit in parallel with four-code channels of two SF2 and two SF4 at most, and the peak rate reaches 5.76Mbit/s. E-DPCCH is used to carry E-DCH uplink signaling. E-HICH is used to carry E-DCH downlink signaling, such as ACK (Acknowledgment, confirmation) information and NACK (Not Acknowledgment, non-acknowledgment) information of Hybrid Automatic Repeat Request (HARQ).

Based on the newly added physical channel, the uplink data inner loop confirmation mechanism is adopted between the HSUPA UE and the base station (NodeB). HSUPA UE sends E-DCH uplink data, NodeB receives the data and confirms, generates ACK information or NACK information, and directly feeds the information back to HSUPA UE through E-HICH channel, changing the original way of confirming by RNC first, reducing data confirmation The time delay improves the transmission efficiency of the air interface.

HSUPA technology uses a short frame mechanism. The Transmit Time Interval (TTI) in the primary stage is 10ms, and the TTI in the higher stage can reach 2ms. The introduction of 10ms or even 2ms short frames can reduce the air interface delay of data and improve user experience. , to better adapt to occasions where the uplink load of a cell changes rapidly.

In order to respond to the wireless environment in a timely and rapid manner and maximize resource utilization, HSUPA technology uses a Node-B-based fast scheduling scheme (Node-B Scheduling). The resource scheduling in HSUPA technology is mainly completed by the newly added resource scheduling functional entity in the NodeB, that is, the MAC-e functional entity. interference. The NodeB quickly allocates and adjusts the maximum available uplink resources of each HSUPA UE, and the adjustment granularity is TTI. The resource scheduling performed by the NodeB can quickly feed back the change of the uplink load in the cell, guide resource allocation to HSUPA UEs, and better realize uplink resource sharing among HSUPA UEs.

The key factors in the HSUPA resource scheduling method include Happy Bit and Scheduling Grant. The Happy Bit is fed back to the NodeB on the E-DPCCH channel when the HSUPA UE sends uplink data on the E-DPDCH channel. To a certain extent, it reflects the HSUPA UE's satisfaction with the current resource scheduling, so that the NodeB can perform the next resource scheduling. . The scheduling grant is the resource allocation information issued by the NodeB to the HSUPA UE, indicating the maximum available uplink resource to the HSUPA UE, mainly through the absolute grant channel (Absolute Grant Channel, AGCH) and the relative grant channel (Relative Grant Channel, RGCH). Wherein, the AGCH channel sends absolute grant information, and the RGCH channel sends relative grant information.

The NodeB-based fast scheduling scheme determines when and how much uplink resources the NodeB allocates to a specific HSUPA UE, so that the NodeB can flexibly and quickly control the data transmission rate of each HSUPA UE in the cell, so that the resources in the wireless communication system can be used more effectively. User services for accessing bursty data, so as to achieve the effect of increasing the throughput of the cell.

The NodeB performs the next resource scheduling on the HSUPA UE according to the feedback information sent by the HSUPA UE, and sends the resource allocation information generated according to the feedback information to the HSUPA UE through the AGCH and RGCH, wherein the feedback information includes Happy Bit, Schedule Information (Schedule Information, SI), E-DCH Transport Format Combination Identifier (E-DCH Transport Format Combination Identifier, E-TFC), etc., a transmission form of E-TFC is E-TFC identifier (E-TFC Identifier, E-TFCI), with a unique The identification number of the E-TFC is indicated. The entire resource scheduling process is: on the data transmission link from NodeB to HSUPA UE, NodeB sends resource allocation information to HSUPA UE, and HSUPA UE modulates and codes the data and sends uplink data on the uplink resource indicated by the resource allocation information, and Send feedback information such as Happy Bit, E-TFC, and SI at the same time, and the uplink data and feedback information form a data frame on the NodeB side; NodeB demodulates and decodes the data frame, and sends the extracted feedback information to MAC-e As the basis for the next resource scheduling, the functional entity generates resource allocation information and sends it to the HSUPAUE. At the same time, the NodeB needs to send the uplink data to the Radio Network Controller (RNC), and the RNC counts the received data. In the resource scheduling process, it needs to go through multiple links, mainly including the transmission of resource allocation information on the data transmission link from NodeB to HSUPA UE, the transmission of uplink data and feedback information on the data transmission link from HSUPA UE to NodeB, On the NodeB side, the uplink data is demodulated and decoded, and resource allocation information is generated according to the feedback information, and the next resource scheduling is performed on the HSUPA UE.

During the process of the present invention, the inventors found that there are at least the following defects in the prior art: if there is a problem with resource scheduling, for example, the resource allocation information is not accurately sent to the HSUPA UE side, there are many links that may cause problems, which is Increases the complexity of problem location during system testing or troubleshooting. At the same time, resource scheduling in wireless communication systems such as WCDMA R99 version and TD-SCDMA system also has the problem of complex positioning environment.

Contents of the invention

Embodiments of the present invention provide a resource scheduling problem locating method and device, which are used to simplify the locating environment and speed up locating.

An embodiment of the present invention provides a method for locating a resource scheduling problem, including:

When a problem occurs in resource scheduling, detecting the execution result of the user equipment on the resource allocation information sent by the base station, the resource allocation information sent by the base station is determined and configured according to the predicted result of resource scheduling; and

Locating a problem in the data transmission link from the base station to the user equipment according to the inconsistency between the execution result and the predicted result.

An embodiment of the present invention provides a resource scheduling problem locating device, including:

A detection unit: used to detect the execution result of the user equipment on the resource allocation information sent by the base station when a resource scheduling problem occurs, and the resource allocation information sent by the base station is determined and configured according to the predicted result of resource scheduling;

A problem locating unit: configured to locate a problem in the data transmission link from the base station to the user equipment according to the inconsistency between the execution result and the predicted result.

The method and device for locating resource scheduling problems provided by the embodiments of the present invention determine and configure the resource allocation information on the base station side according to the predicted result of resource scheduling when a resource scheduling problem occurs, and send it to the user equipment, thereby isolating the user equipment and the base station. According to the execution result of the resource allocation information by the user equipment, it can be determined whether there is a problem in the data transmission link from the base station to the user equipment, so as to realize resource scheduling problem location. The solution provided by the embodiment of the present invention simplifies the positioning environment, accelerates the positioning speed, ensures the realization of the resource scheduling strategy, and can maximize the advantages of the resource scheduling strategy.

Description of drawings

FIG. 1 is a flowchart of a method for locating a resource scheduling problem in an embodiment of the present invention;

FIG. 2 is a block diagram of an apparatus for locating a resource scheduling problem in an embodiment of the present invention;

FIG. 3 is a schematic diagram of resource scheduling problem positioning applied to HSUPA in an embodiment of the present invention;

FIG. 4 is a flowchart of a method for locating resource scheduling problems applied to HSUPA in an embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides a resource scheduling problem locating method and device, which simplifies the locating environment, accelerates the locating speed, ensures the realization of the resource scheduling strategy, and can maximize the advantages of the resource scheduling strategy.

An embodiment of the present invention provides a method for locating a resource scheduling problem, as shown in FIG. 1 , including:

S101. When a resource scheduling problem occurs, detect the execution result of the user equipment on the resource allocation information sent by the base station. The resource allocation information sent by the base station is determined and configured according to the predicted result of resource scheduling;

One basis for resource scheduling problems is that the amount of data sent by the user equipment counted by the radio network controller is zero.

S102. According to the inconsistency between the execution result and the predicted result, locate a problem in the data transmission link from the base station to the user equipment.

So far, according to the inconsistency between the execution result and the predicted result, the problem of the data transmission link from the base station to the user equipment can be located, and the resource scheduling problem is realized.

If the execution result is consistent with the predicted result, it can be ruled out that there is a problem in the data transmission link from the base station to the user equipment, and other links that may have problems need to be checked. Other reasons for the problem may include the data transmission link from the user equipment to the base station If there is a problem, such as large interference in the transmission environment, entering a shadow area, etc., or there is a problem with resource scheduling on the base station side, so further positioning of the problem is required, the method also includes:

S103. According to the consistency between the execution result and the predicted result, and the inconsistency between the decoding information of the base station for the uplink data and the uplink data sent by the user equipment, there is a problem in locating the data transmission link from the user equipment to the base station; or,

S104. According to the fact that the execution result is consistent with the predicted result, and the uplink data decoding information of the base station is consistent with the uplink data sent by the user equipment, a problem occurs in resource scheduling on the base station side.

Preferably, when detecting the execution result of the user equipment on the resource allocation information sent by the base station, because the resource allocation information is determined and configured to the base station according to the predicted result of resource scheduling, the base station is shielded from receiving feedback from the user equipment The resource allocation information generated by the information itself, in order to facilitate the distinction, the resource allocation information generated by the base station itself is called system resource allocation information, so that the execution result of the user equipment is not affected by the system resource allocation information.

The resource scheduling problem locating method provided by the embodiment of the present invention is applicable to resource scheduling problem locating in system testing and resource scheduling problem locating in system troubleshooting.

The embodiment of the present invention also provides a device for locating resource scheduling problems, as shown in FIG. 2 , including:

Detection unit 201: used to detect the execution result of the user equipment on the resource allocation information sent by the base station when a resource scheduling problem occurs, and the resource allocation information sent by the base station is determined and configured according to the predicted result of resource scheduling;

Problem locating unit 202: for locating a problem in the data transmission link from the base station to the user equipment according to the inconsistency between the execution result and the predicted result.

further,

The problem locating unit 202 also locates a problem in the data transmission link between the user equipment and the base station according to the consistency between the execution result and the predicted result, and the inconsistency between the uplink data decoding information of the base station and the uplink data sent by the user equipment; or,

The problem locating unit 202 also locates a problem in the data transmission link from the user equipment to the base station according to the consistency between the execution result and the predicted result, and the consistency between the decoding information of the received uplink data and the uplink data sent by the user equipment.

Preferably, the device also includes:

Shielding unit 203: for shielding the system resource allocation information generated by the base station itself according to the received feedback information from the user equipment when detecting the execution result of the user equipment on the resource allocation information sent by the base station.

The device may also include:

Trigger unit 204: configured to trigger the detection unit 201 when the amount of data counted by the radio network controller is zero.

The method and device for locating resource scheduling problems provided by the embodiments of the present invention shield the system resource allocation information generated by the base station according to the received feedback information from the user equipment when a resource scheduling problem occurs, and determine and Configure the resource allocation information on the base station side and send it to the user equipment side, so that resource scheduling problems can be located according to the execution results of the user equipment on the resource allocation information, thereby simplifying the positioning environment, speeding up the positioning speed, and ensuring the resource scheduling strategy The realization of can maximize the advantages of resource scheduling strategy;

The method and device for locating resource scheduling problems provided by the embodiments of the present invention, when detecting the execution result of the resource allocation information sent by the base station by the user equipment, shields the system resource allocation information generated by the base station, so that the user equipment executes the resources pre-configured on the base station side The distribution of information is not affected, ensuring the accuracy of positioning results;

The method and device for locating resource scheduling problems provided by the embodiments of the present invention can be used in both system testing and system troubleshooting, and are widely applicable, convenient and flexible to use.

The method for locating resource scheduling problems provided by the embodiments of the present invention is described in detail below with specific embodiments. The application scenario is the fast scheduling scheme of NodeB in HSUPA technology, wherein HSUPA UE is user equipment, NodeB is a base station, and RNC is a radio network controller. . Firstly, the implementation principle of the resource scheduling problem location method provided by the embodiment of the present invention is introduced.

In the process of resource scheduling, HSUPA UE transmits uplink data to NodeB according to the instruction of resource allocation information, and RNC counts the received uplink data. If the amount of data counted by RNC is 0, the main reason may be the data from NodeB to HSUPA UE There is a problem in the transmission link, which causes resource scheduling information to be unable to be sent to the HSUPA UE side; or, there is a problem in the data transmission link from the HSUPA UE to NodeB, such as a large interference in the transmission environment, resulting in failure to send uplink data; or the resources on the NodeB side Scheduling problems, such as wrong parameter configuration of scheduling authorization, etc.; the specific reasons need to be further analyzed and located. Of course, there may be other reasons, such as problems with HSUPA UE, etc., but this is something that the system cannot troubleshoot and solve, and needs to be handled by the user, which is not within the scope of the embodiments of the present invention. The embodiments of the present invention are based on It is assumed that the HSUPA UE on the user side is working normally.

The embodiment of the present invention provides a resource scheduling problem locating method for a complex locating environment. When a resource scheduling problem occurs, the resource allocation information of the predicted result is configured on the NodeB side, thereby simplifying the locating environment and facilitating rapid locating. . As shown in Figure 3, HSUPA UE sends uplink data to NodeB and sends feedback information at the same time. NodeB demodulates and decodes uplink data through the uplink processing unit to extract Happy Bit, E-TFC, SI and other feedback information and send them to MAC- The e functional entity sends the uplink data to the RNC. Generally, the NodeB sends the system resource allocation information generated by the MAC-e functional entity according to the feedback information to the HSUPA UE. When the amount of data counted by the RNC is 0, in order to simplify the positioning environment, the NodeB sends the resource allocation information determined and configured according to the predicted results to the HSUPA UE or the decoding and positioning tool used to simulate the HSUPA UE. The specific channel sent is the AGCH channel and RGCH channel; by forcing resource allocation for HSUPA UE, and checking whether the execution result of resource allocation information on the HSUPA UE side is consistent with the predicted result of resource scheduling, further problem location:

If the execution result is inconsistent with the predicted result, the positioning problem occurs in the data transmission link from NodeB to HSUPA UE;

If the execution result is consistent with the predicted result, it is ruled out that there is a problem in the data transmission link from NodeB to HSUPA UE. The problem may occur in the data transmission link from HSUPA UE to NodeB, or the resource scheduling on the NodeB side, and further problem location is performed.

The resource allocation information received by the HSUPA UE and the processing on the HSUPA UE side are introduced below. After receiving the resource allocation information, the HSUPA UE determines the maximum available power and the maximum available E-TFC of the E-DCH channel corresponding to the equipment according to the resource allocation information. Each HSUPA UE corresponds to its own Serving Grant, which affects the selection of E-TFC. There are two types of service authorization: absolute authorization and relative authorization. The absolute authorization is determined according to the absolute authorization information received on the AGCH channel, indicating the service authorization that the UE can use; the relative authorization is determined according to the relative authorization information received on the RGCH channel, and the indication includes information such as the relative increase or maintenance or decrease of the E-DCH channel power . The service authorization of HSUPAUE can be updated according to the changes of absolute authorization and relative authorization. NodeB determines the maximum available uplink resource and transmission time of HSUPA UE according to the cell load and interface resource occupation. The E-TFC actually used by the HSUPA UE is determined by the HSUPA UE and fed back to the NodeB through the E-DPCCH channel. HSUPA UE feeds back its satisfaction with the current resource scheduling through the Happy Bit, so that the NodeB can change the resource allocation information next time.

Based on the above analysis, the embodiment of the present invention provides a method for locating resource scheduling problems applied to HSUPA, as shown in FIG. 4 , including:

S401. Observe the amount of data counted by the RNC, and when the amount of data counted by the RNC is 0, execute S402;

S402. Determine and configure resource allocation information on the NodeB side according to the predicted result of resource scheduling, so that the NodeB sends the resource allocation information to the HSUPAUE;

When the amount of data counted by the RNC is 0, resource scheduling problem location needs to be performed to determine the specific link where the problem occurs. The resource allocation information on the NodeB side is generated according to the predicted result of resource scheduling, and the resource allocation information includes the identification information of the detected HSUPA UE and the resource parameter information allocated for the detected HSUPA UE. The resource allocation information is pre-configured on the NodeB side in the form of test signaling. The test signaling includes AG parameters, RG parameters and detection range parameters, and resources are allocated to HSUPA UEs in the cell according to the test signaling. The application range of this resource allocation is determined by the detection range parameter, which includes the identification information of all detected HSUPA UEs. The detection range can be all HSUPA UEs in the cell, or a specified HSUPA UE; AG parameters and RG parameters The resource parameter information allocated for the detected HSUPA UE is set in a fixed value, indicating the absolute authorization information and relative authorization information of the HSUPA UE, so as to allocate resources to the HSUPA UE within the application range; NodeB sends the test signaling Afterwards, only the detected HSUPA UE specified in the detection range parameter can correctly decode the received signaling to obtain resource parameter information, while other HSUPA UEs in the cell discard the signaling because they cannot be decoded correctly;

S403, detecting whether the execution result of the resource allocation information sent by the HSUPA UE to the NodeB is consistent with the predicted result, if not consistent, perform S404, and if consistent, perform S405;

Detect the execution result of the resource allocation information of the HSUPA UE within the application scope. The detection of the execution result includes checking whether the absolute authorization information and the relative authorization information stipulated by the AG parameter and the RG parameter are effective. If it is effective, the execution result is consistent with the predicted result. If If it does not take effect, the execution result will be inconsistent with the predicted result;

S404, a problem occurs in the data transmission link from the positioning NodeB to the HSUPA UE;

S405. Exclude the problem of the data transmission link from the NodeB to the HSUPA UE, and detect whether the decoding information of the NodeB to the uplink data is consistent with the uplink data sent by the HSUPA UE. If they are inconsistent, execute S406, and if they are consistent, execute S407;

S406. There is a problem in locating the data transmission link from the HSUPA UE to the NodeB;

S407. Exclude the problem of the data transmission link from the HSUPA UE to the NodeB, and locate the resource scheduling problem on the NodeB side;

After locating the resource scheduling problem on the NodeB side, you can further locate the resource scheduling problem on the NodeB side, and detect the happy bit, E-TFC, SI and other feedback information received by the MAC-e functional entity on the NodeB side and HSUPA UE Whether the feedback information generated according to the resource scheduling on the NodeB side is consistent, if not, then there is a problem with the internal data transmission link between the uplink processing unit on the NodeB side and the MAC-e functional entity;

If they are consistent, there is a problem in the scheduling processing of the MAC-e functional entity on the NodeB side.

When detecting the execution result of the resource allocation information of the HSUPA UE within the application range, send E-DCH downlink signaling to the HSUPA UE on the E-HICH channel as usual, but shield NodeB from feedback based on happy bit, E-TFC, SI, etc. Information self-generated system resource allocation information.

The problem location method applied to HSUPA resource scheduling provided by the embodiment of the present invention simplifies the location environment when HSUPA resource scheduling problems occur by isolating HSUPA UE and NodeB, thereby improving the location efficiency and ensuring the realization of the HSUPA resource scheduling strategy , the method is simple and feasible.

The method and device for locating resource scheduling problems provided by the embodiments of the present invention are not only applicable to the fast resource scheduling scheme of NodeB in HSUPA technology, but also applicable to resource scheduling in other wireless communication systems, such as the R99 version of WCDMA, TD-SCDMA ( Time Division-Synchronous CDMA) system, etc., by determining and configuring resource allocation information on the base station side according to the predicted results, the purpose of isolating the base station and user equipment is achieved, thereby simplifying the positioning environment and improving positioning efficiency;

The method and device for locating resource scheduling problems provided by the embodiments of the present invention are not only suitable for testing the system, but also for locating the fault when the system fails. It is widely applicable, and the method is simple and efficient.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A method for resource scheduling problem location, comprising:

when a problem occurs in resource scheduling, detecting an execution result of user equipment on resource allocation information sent by a base station, wherein the resource allocation information sent by the base station is determined and configured according to a predicted result of the resource scheduling; and are

And positioning a data transmission link from the base station to the user equipment to cause a problem according to the inconsistency between the execution result and the predicted result.

2. The method of claim 1, further comprising:

positioning a data transmission link from the user equipment to the base station to cause a problem according to the fact that the execution result is consistent with the predicted result and the fact that the decoding information of the uplink data sent by the base station is inconsistent with the uplink data sent by the user equipment; or,

and positioning resource scheduling at the base station side according to the fact that the execution result is consistent with the predicted result and the decoding information of the base station on the uplink data is consistent with the uplink data sent by the user equipment.

3. The method as claimed in claim 2, wherein after the resource scheduling at the positioning base station side is in problem, further comprising:

detecting whether feedback information received by a resource scheduling functional entity at a base station side is consistent with feedback information generated by user equipment according to resource scheduling at the base station side, and if not, positioning an internal data transmission link at the base station side to cause a problem;

if the resource scheduling function entities are consistent with each other, the scheduling processing of the resource scheduling function entity at the positioning base station side has problems.

4. The method of claim 1, wherein system resource allocation information generated by a base station is masked when detecting the result of performing the resource allocation information transmitted by a user equipment to the base station.

5. The method of claim 1, wherein the resource allocation information comprises: identification information of the detected user equipment, and resource parameter information allocated to the detected user equipment.

6. The method according to any of claims 1 to 5, wherein said resource scheduling is problematic based on: the data volume sent by the user equipment counted by the radio network controller is zero.

7. An apparatus for resource scheduling problem location, comprising:

a detection unit: the base station is used for detecting the execution result of the user equipment on the resource allocation information sent by the base station when the resource scheduling has a problem, wherein the resource allocation information sent by the base station is determined and configured according to the predicted result of the resource scheduling;

a problem location unit: and the data transmission link used for positioning the base station to the user equipment according to the inconsistency between the execution result and the predicted result is in trouble.

8. The apparatus of claim 7, wherein the problem location unit further locates a problem in a data transmission link from the ue to the base station according to the execution result being consistent with the predicted result and the decoding information of the uplink data sent by the base station being inconsistent with the uplink data sent by the ue; or,

and positioning resource scheduling at the base station side according to the fact that the execution result is consistent with the predicted result and the decoding information of the base station on the uplink data is consistent with the uplink data sent by the user equipment.

9. The apparatus of claim 7, wherein the apparatus further comprises:

a shielding unit: the method is used for shielding the system resource allocation information generated by the base station when the execution result of the resource allocation information sent by the user equipment to the base station is detected.

10. The apparatus of claim 7, 8 or 9, further comprising:

a trigger unit: and the detecting unit is triggered when the data amount counted by the wireless network controller is zero.

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