CN106332118A - A resource conflict handling method and device - Google Patents

Abstract

The invention discloses a resource conflict processing method, comprising the steps of labeling a current cell when UE determines that a resource conflict exists between a position of a scheduling request (SR) transmitting resource and a position of a measurement gap resource of the current cell, and performing radio resource control (RRC) reconstruction according to a preset reconstruction rule, wherein the labeling represents that the current cell is disabled in a certain period of time. The invention further discloses a resource conflict processing device.

Description

A resource conflict handling method and device

technical field

The present invention relates to technologies related to resource conflict processing in the communication field, and in particular to a resource conflict processing method and device.

Background technique

When there is uplink data to be sent, the user equipment (UE, User Equipment) sends a scheduling request (SR, Scheduling Request) on the physical uplink control channel (PUCCH, Physical Uplink Control Channel) resource allocated by the eNB to request physical uplink sharing Channel (PUSCH, PhysicalUplink Shared Channel) resource; the uplink PUSCH resource is used for UE to send uplink data.

The measurement gap is a resource defined in Long Term Evolution (LTE, Long Term Evolution) to support inter-frequency/inter-standard synchronization and measurement. Since the measurement bandwidth of a single LTE radio frequency is up to 20M, during the inter-frequency/inter-standard measurement process, the UE needs to stop the measurement of the current frequency point and switch the radio frequency to the inter-frequency/inter-standard frequency point for measurement. In the agreement, UE and eNB jointly generate a Gap idle time. Once the UE enters the Gap time, it will not allow any uplink and downlink channel transmission.

However, in the prior art, the position of the sending resource of the SR and the position of the measuring Gap resource inevitably overlap, that is, the sending resource of the SR conflicts with the measuring Gap resource, so that the UE cannot send the SR when the measuring Gap is Uplink data cannot be sent within the first few subframes.

Contents of the invention

In view of this, the embodiments of the present invention expect to provide a resource conflict processing method and device, which can avoid the problem of inability to send SR caused by the conflict between the SR sending resource location and the measurement Gap resource location, and improve user experience.

In order to achieve the above object, the technical solution of the embodiment of the present invention is achieved in this way:

An embodiment of the present invention provides a resource conflict handling method, the method comprising:

When the user equipment UE determines that there is a resource conflict between the scheduling request SR transmission resource position of the current cell and the measurement Gap resource position, it marks the current cell, and performs radio resource control RRC re-establishment according to the preset re-establishment rule; wherein the mark indicates that the current cell is in Disabled for a certain period of time.

In the above solution, before the UE determines that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position, the method further includes:

The UE obtains the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and the measurement Gap resource configuration information carried in the received RRC reconfiguration message.

In the above scheme, performing RRC reconstruction according to preset reconstruction rules includes:

The UE performs cell selection, and when it is determined that there is a suitable inter-frequency cell, selects the inter-frequency cell to initiate an RRC re-establishment process;

When it is determined that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, the same-frequency cell is selected to initiate an RRC re-establishment process.

In the above solution, when it is determined that neither a suitable inter-frequency cell nor a suitable same-frequency cell exists, the method further includes:

The UE cancels the marking of the current cell, and identifies that the SR resource of the current cell is unavailable, so that the UE adopts a processing method corresponding to the situation that the number of SR transmission times exceeds the limit.

In the above scheme, the method also includes:

When the UE determines that it leaves the RRC connection state or switches to another cell, it cancels the marking of the current cell.

The embodiment of the present invention also provides a resource conflict processing device, the device includes: a determination module and a processing module; wherein,

The determination module is configured to trigger a processing module when determining that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position;

The sorting module is configured to mark the current cell, and perform RRC re-establishment according to a preset re-establishment rule; wherein, the mark indicates that the current cell is disabled within a certain period of time.

In the above solution, the device further includes an acquisition module, configured to obtain the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and the measurement Gap resource configuration information carried in the received RRC reconfiguration message.

In the above scheme, the processing module is specifically used for cell selection, and when it is determined that there is a suitable inter-frequency cell, select the inter-frequency cell to initiate an RRC reconstruction process;

When it is determined that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, the same-frequency cell is selected to initiate an RRC re-establishment process.

In the above solution, the processing module is further configured to cancel the marking of the current cell, and identify that the SR resource of the current cell is unavailable, so that the UE adopts a processing method corresponding to the situation that the number of times of SR transmission exceeds the limit.

In the above solution, the processing module is further configured to cancel the marking of the current cell when it is determined that the UE leaves the RRC connection state or switches to another cell.

In the resource conflict processing method and device provided by the embodiments of the present invention, when the UE determines that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position, it marks the current cell and performs RRC reconstruction according to a preset reconstruction rule; wherein, The flag indicates that the current cell is disabled within a certain period of time. In this way, the problems of failure to send SR and failure to apply for uplink authorization caused by the conflict between the location of the SR sending resource and the location of the measurement Gap resource can be avoided, user experience can be improved, and the implementation is simple and reliable.

Description of drawings

FIG. 1 is a schematic flowchart of a resource conflict handling method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an RRC reconstruction process according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a resource conflict handling method according to Embodiment 2 of the present invention;

FIG. 4 is a schematic diagram of the composition and structure of a resource conflict processing device according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, when the UE determines that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position, it marks the current cell and performs RRC reconstruction according to the preset reestablishment rule; wherein the mark indicates that the current cell is in Disabled for a certain period of time.

Fig. 1 is a schematic flowchart of a resource conflict processing method according to an embodiment of the present invention; as shown in Fig. 1 , the resource conflict processing method according to this embodiment of the present invention includes:

Step 101: When the UE determines that there is a resource conflict between the SR transmission resource location of the current cell and the measurement Gap resource location, the UE marks the current cell, and performs RRC re-establishment according to a preset re-establishment rule;

Here, the flag indicates that the current cell is disabled within a certain period of time, that is, the UE does not select the current cell when performing cell selection within the certain period of time; wherein, the length of the certain period of time can be set according to actual needs.

Further, before this step, the method further includes: the UE obtains the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and measurement Gap resource configuration information carried in the received RRC reconfiguration message;

Here, the SR configuration information and measurement Gap resource configuration information carried in the RRC reconfiguration message can be either: the SR configuration information and measurement Gap resource configuration information carried in one RRC reconfiguration message, or two different RRC configuration information. Reconfiguration messages, wherein one RRC reconfiguration message carries SR configuration information, and the other RRC reconfiguration message carries measurement Gap resource configuration information;

Wherein, the SR configuration information includes the SR configuration index I _SR ; the I _SR is: RadioResourceConfigDedicated->physicalConfigDedicated->

sr-ConfigIndex information element value under schedulingRequestConfig;

The UE obtains the SR transmission resource position according to the SR configuration information carried in the received RRC reconfiguration message including:

According to the SR configuration information carried in the received RRC reconfiguration message and the UE

(10×SFN+subframe-N _OFFSET,SR ) mod SR _Periodicity = 0, to obtain the SR transmission resource location;

Among them, SFN is the system frame number sent by SR, subframe is the subframe number sent by SR, N _{OFFSET, SR} is the SR subframe offset, and SR _Periodicity is the SR sending period; among them, N _{OFFSET, SR} and SR _Periodicity are based on the _ISR in The index in Table 1 is obtained;

Table I

The measurement Gap resource configuration information includes a measurement Gap period, and the measurement Gap period includes two types, 40ms and 80ms respectively, represented by the gapOffset information element in measConfig->MeasGapConfig in the RRC reconfiguration message; the measurement Gap The duration is fixed at 6ms;

The UE obtains the measurement Gap resource location according to the measurement Gap resource configuration information carried in the received RRC reconfiguration message, including:

UE according to the measurement Gap resource configuration information carried in the received RRC reconfiguration message and

SFN mod T=FLOOR(gapOffset/10); subframe=gapOffset mod 10; obtain the measurement Gap resource position;

Among them, T is one-tenth of the Gap period, SFN is the Gap start system frame number, subframe is the Gap start subframe number, and gapoffset is the cycle offset value; SFN and subframe jointly determine the Gap start position.

Further, the timer corresponding to the flag indicating that the current cell is disabled within a certain period of time expires, and the flag is canceled.

Further, performing RRC reconstruction according to preset reconstruction rules includes:

The UE performs cell selection, and when it is determined that there is a suitable inter-frequency cell, select the inter-frequency cell to initiate the RRC reconstruction process; when it determines that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, select the same-frequency cell to initiate RRC The reconstruction process; that is to say, during the RRC reconstruction process, the UE selects the inter-frequency cell and the same-frequency cell as the second choice. When it determines that the RRC reconstruction is successful, it continues the SR data transmission process according to the re-established RRC connection; when it determines that the RRC reconstruction fails, it restarts Initiate an RRC connection request;

The RRC reconstruction process initiated by the UE after selecting a suitable inter-frequency/same-frequency cell includes:

The UE sends an RRC re-establishment request to the network side, and receives the RRC re-establishment message sent by the network side to complete the RRC re-establishment; as shown in FIG. 2 .

Further, when it is determined that there is neither a suitable inter-frequency cell nor a suitable same-frequency cell, the method further includes:

The UE cancels the marking of the current cell, and identifies that the SR resources of the current cell are unavailable, so that the UE takes the processing method corresponding to the situation that the number of SR transmissions exceeds the limit; that is, when the UE cannot find a cell that can perform RRC reconstruction, only When the current cell can be found, continue to use the current cell, cancel the marking of the current cell, and mark that the SR resource of the current cell is unavailable;

Here, the processing manner corresponding to the case that the number of SR transmission times exceeds the limit may be random access or the like.

Further, when the UE determines that it leaves the RRC connection state or switches to another cell, it cancels the marking of the current cell.

FIG. 3 is a schematic flow chart of a resource conflict handling method according to Embodiment 2 of the present invention; as shown in FIG. 3 , the resource conflict handling method according to this embodiment of the present invention includes:

Step 301: The UE obtains the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and measurement Gap resource configuration information carried in the received RRC reconfiguration message;

Here, the SR configuration information and measurement Gap resource configuration information carried in the RRC reconfiguration message can be either: the SR configuration information and measurement Gap resource configuration information carried in one RRC reconfiguration message, or two different RRC configuration information. Reconfiguration messages, wherein one RRC reconfiguration message carries SR configuration information, and the other RRC reconfiguration message carries measurement Gap resource configuration information;

Wherein, the SR configuration information includes the SR configuration index I _SR ; the I _SR is: RadioResourceConfigDedicated->physicalConfigDedicated->

sr-ConfigIndex information element value under schedulingRequestConfig;

The measurement Gap resource configuration information includes a measurement Gap period, and the measurement Gap period includes two types, 40ms and 80ms respectively, represented by the gapOffset information element in measConfig->MeasGapConfig in the RRC reconfiguration message; the measurement Gap The duration is fixed at 6ms;

The UE obtains the SR transmission resource position according to the SR configuration information carried in the received RRC reconfiguration message including:

According to the SR configuration information carried in the received RRC reconfiguration message and the UE

(10×SFN+subframe-N _OFFSET,SR ) mod SR _Periodicity = 0, to obtain the SR transmission resource location;

Among them, SFN is the system frame number sent by SR, subframe is the subframe number sent by SR, N _{OFFSET, SR} is the SR subframe offset, and SR _Periodicity is the SR sending period; among them, N _{OFFSET, SR} and SR _Periodicity are based on the _ISR in index in Table 1.

The UE obtains the measurement Gap resource location according to the measurement Gap resource configuration information carried in the received RRC reconfiguration message, including:

UE according to the measurement Gap resource configuration information carried in the received RRC reconfiguration message and

SFN mod T=FLOOR(gapOffset/10); subframe=gapOffset mod 10; obtain the measurement Gap resource position;

Among them, T is one-tenth of the Gap period, SFN is the Gap start system frame number, subframe is the Gap start subframe number, and gapoffset is the cycle offset value; SFN and subframe jointly determine the Gap start position.

Step 302: Judging whether there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position, if so, perform step 303; otherwise, perform step 304;

This step specifically includes: judging whether the location of the SR transmission resource of the current cell coincides with the location of the measurement Gap resource, and if they overlap, determine that there is a conflict; otherwise, there is no conflict.

Step 303: mark the current cell, and perform RRC reconstruction according to preset reconstruction rules;

Here, the flag indicates that the current cell is disabled within a certain period of time, that is, the UE does not select the current cell when performing cell selection within the certain period of time; wherein, the length of the certain period of time can be set according to actual needs, and when The timer corresponding to the flag indicating that the current cell is disabled within a certain period of time expires, and the flag is canceled.

Further, performing RRC reconstruction according to preset reconstruction rules includes:

The UE performs cell selection, and when it is determined that there is a suitable inter-frequency cell, select the inter-frequency cell to initiate the RRC reconstruction process; when it determines that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, select the same-frequency cell to initiate RRC The re-establishment process; that is to say, during the RRC re-establishment process, the UE selects an inter-frequency cell and secondly selects an intra-frequency cell, and when it determines that the RRC re-establishment is successful, continues the SR data transmission process according to the re-established RRC connection.

Further, when it is determined that there is neither a suitable inter-frequency cell nor a suitable same-frequency cell, the method further includes:

The UE cancels the marking of the current cell, and identifies that the SR resources of the current cell are unavailable, so that the UE takes the processing method corresponding to the situation that the number of SR transmissions exceeds the limit; that is, when the UE cannot find a cell that can perform RRC reconstruction, only When the current cell can be found, continue to use the current cell, cancel the marking of the current cell, and mark that the SR resource of the current cell is unavailable;

Here, the processing manner corresponding to the case that the number of SR transmission times exceeds the limit may be random access or the like.

Further, when the UE determines that it leaves the RRC connection state or switches to another cell, it cancels the marking of the current cell.

Step 304: End this processing flow.

FIG. 4 is a schematic diagram of the structure of a resource conflict processing device according to an embodiment of the present invention; the device is located at a UE. As shown in FIG. 4 , the composition of the resource conflict processing device according to this embodiment of the present invention includes: a determination module 41 and a processing module 42;

The determination module 41 is configured to trigger a processing module when determining that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position;

The sorting module 42 is configured to mark the current cell, and perform RRC reconstruction according to preset reconstruction rules;

Wherein, the flag indicates that the current cell is disabled within a certain period of time, that is, the UE does not select the current cell when performing cell selection within the certain period of time; the length of the certain period of time can be set according to actual needs.

Further, the device further includes an acquisition module 43, configured to obtain the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and measurement Gap resource configuration information carried in the received RRC reconfiguration message;

Here, the SR configuration information and measurement Gap resource configuration information carried in the RRC reconfiguration message can be either: the SR configuration information and measurement Gap resource configuration information carried in one RRC reconfiguration message, or two different RRC configuration information. Reconfiguration messages, wherein one RRC reconfiguration message carries SR configuration information, and the other RRC reconfiguration message carries measurement Gap resource configuration information;

Wherein, the SR configuration information includes the SR configuration index I _SR ; the I _SR is: RadioResourceConfigDedicated->physicalConfigDedicated->

sr-ConfigIndex information element value under schedulingRequestConfig;

The measurement Gap resource configuration information includes a measurement Gap period, and the measurement Gap period includes two types, 40ms and 80ms respectively, represented by the gapOffset information element in measConfig->MeasGapConfig in the RRC reconfiguration message; the measurement Gap The duration is fixed at 6ms;

The obtaining module 43 is specifically configured to use the SR configuration information carried in the received RRC reconfiguration message and the

(10×SFN+subframe-N _OFFSET,SR ) mod SR _Periodicity = 0, to obtain the SR transmission resource location;

Among them, SFN is the system frame number sent by SR, subframe is the subframe number sent by SR, N _{OFFSET, SR} is the SR subframe offset, and SR _Periodicity is the SR sending period; among them, N _{OFFSET, SR} and SR _Periodicity are based on the _ISR in The index in Table 1 is obtained;

And, it is used to obtain the measurement Gap resource position according to the measurement Gap resource configuration information carried in the received RRC reconfiguration message and SFN mod T=FLOOR(gapOffset/10); subframe=gapOffset mod 10;

Among them, T is one-tenth of the Gap period, SFN is the Gap start system frame number, subframe is the Gap start subframe number, and gapoffset is the cycle offset value; SFN and subframe jointly determine the Gap start position.

Further, the processing module 42 is specifically used for cell selection, and when it is determined that there is a suitable inter-frequency cell, select the inter-frequency cell to initiate an RRC reconstruction process;

When it is determined that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, select the same-frequency cell to initiate an RRC reconstruction process;

The processing module 42 is further configured to continue the SR data sending process according to the reestablished RRC connection when it is determined that the RRC reestablishment is successful.

Further, the processing module 42 is also configured to cancel the marking of the current cell, and identify that the SR resource of the current cell is unavailable, so that the UE adopts a processing method corresponding to the situation that the number of times of SR transmission exceeds the limit for processing;

Correspondingly, the processing module 42 is further configured to adopt a processing method corresponding to the situation that the number of SR transmissions exceeds the limit, such as performing random access.

Further, the processing module 42 is also configured to cancel the marking of the current cell when it is determined that the UE leaves the RRC connection state or switches to another cell.

In the embodiment of the present invention, the determination module 41, the processing module 42 and the acquisition module 43 can all be controlled by a central processing unit (CPU, Central Processing Unit) or a digital signal processor (DSP, Digital Signal Processor) in the terminal, or on-site Realized by a programmable gate array (FPGA, Field Programmable GateArray) or an integrated circuit (ASIC, Application Specific Integrated Circuit).

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (10)

1. A resource conflict processing method, characterized in that the method comprises: When the user equipment UE determines that there is a resource conflict between the scheduling request SR transmission resource position of the current cell and the measurement Gap resource position, it marks the current cell, and performs radio resource control RRC re-establishment according to the preset re-establishment rule; wherein, the mark indicates that the current cell is in Disabled for a certain period of time. 2. The method according to claim 1, wherein before the UE determines that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position, the method further comprises: The UE obtains the SR transmission resource location and the measurement Gap resource location according to the SR configuration information and the measurement Gap resource configuration information carried in the received RRC reconfiguration message. 3. The method according to claim 1 or 2, wherein said performing RRC reconstruction according to a preset reconstruction rule comprises: The UE performs cell selection, and when it is determined that there is a suitable inter-frequency cell, selects the inter-frequency cell to initiate an RRC re-establishment process; When it is determined that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, the same-frequency cell is selected to initiate an RRC re-establishment process. 4. The method according to claim 3, wherein when it is determined that there is neither a suitable inter-frequency cell nor a suitable same-frequency cell, the method further comprises: The UE cancels the marking of the current cell, and identifies that the SR resource of the current cell is unavailable, so that the UE adopts a processing method corresponding to the situation that the number of times of SR transmission exceeds the limit. 5. according to the described method of claim 1 or 2, it is characterized in that, described method also comprises: When the UE determines that it leaves the RRC connection state or switches to another cell, it cancels the marking of the current cell. 6. A resource conflict processing device, characterized in that the device comprises: a determination module and a processing module; wherein, The determination module is configured to trigger a processing module when determining that there is a resource conflict between the SR transmission resource position of the current cell and the measurement Gap resource position; The sorting module is configured to mark the current cell, and perform RRC re-establishment according to a preset re-establishment rule; wherein, the mark indicates that the current cell is disabled within a certain period of time. 7. The device according to claim 6, wherein the device further comprises an acquisition module for obtaining the SR transmission resource location and the measurement Gap resource configuration information according to the SR configuration information carried in the received RRC reconfiguration message and the measurement Gap resource configuration information. Gap resource location. 8. The device according to claim 6 or 7, wherein the processing module is specifically used for cell selection, and when it is determined that there is a suitable inter-frequency cell, select the inter-frequency cell to initiate an RRC reconstruction process; When it is determined that there is no suitable inter-frequency cell but there is a suitable same-frequency cell, the same-frequency cell is selected to initiate an RRC re-establishment process. 9. The device according to claim 8, wherein the processing module is further configured to cancel the marking of the current cell, and identify that the SR resources of the current cell are unavailable, so that the UE responds to the situation that the number of SR transmission times exceeds the limit processing method. 10. The device according to claim 6 or 7, wherein the processing module is further configured to cancel the marking of the current cell when it is determined that the UE leaves the RRC connection state or switches to another cell.