CN107223363B - Method and device for allocating Scheduling Request (SR) resources - Google Patents
Method and device for allocating Scheduling Request (SR) resources Download PDFInfo
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Abstract
The disclosure relates to a method and a device for allocating SR resources, and belongs to the technical field of communication. The method comprises the following steps: when a preset SR resource allocation condition is reached, allocating SR resources for a target terminal, wherein the SR resources are SR resources commonly used by a plurality of terminals; and sending an SR resource configuration message to the target terminal, wherein the SR resource configuration message carries the time-frequency resource position of the SR resource, so that the target terminal sends a scheduling request through the SR resource. By adopting the method and the device, the transmission efficiency can be improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating scheduling request SR resources.
Background
In an LTE (Long Term Evolution) system, after a terminal accesses a base station, the base station allocates a resource (may be referred to as an SR resource) for transmitting a Scheduling Request (SR) to the terminal, and then sends a resource configuration message corresponding to the SR resource to the terminal. The resource configuration message includes a time-frequency resource position of the SR resource, where the time-frequency resource position is a position of a resource block corresponding to the SR resource in the subframe. In this way, when the terminal needs to transmit uplink data to the base station, the terminal transmits a scheduling request to the base station on the SR resource allocated by the base station, and the base station allocates an uplink resource to the terminal, and the terminal transmits the uplink data to the base station through the uplink resource. The base station allocates different SR resources to different terminals, so that each terminal sends a scheduling request to the base station through its own SR resource.
In carrying out the present disclosure, the inventors found that at least the following problems exist:
based on the above allocation manner, when the number of terminals is large, the SR resources allocated to the terminals occupy a large amount of transmission resources, resulting in low transmission efficiency.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a method and apparatus for allocating SR resources. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a method of allocating scheduling request, SR, resources, the method comprising:
when a preset SR resource allocation condition is reached, allocating SR resources for a target terminal, wherein the SR resources are SR resources commonly used by a plurality of terminals;
and sending an SR resource configuration message to the target terminal, wherein the SR resource configuration message carries the time-frequency resource position of the SR resource, so that the target terminal sends a scheduling request through the SR resource.
Optionally, the method further includes:
receiving a scheduling request sent by the target terminal, wherein the scheduling request carries a terminal identifier of the target terminal;
allocating uplink resources to the target terminal according to the terminal identifier of the target terminal;
and sending an uplink resource configuration message to the target terminal so that the target terminal sends uplink data to the base station through the uplink resource.
Thus, an implementation manner for allocating uplink resources to the terminal is provided.
Optionally, the SR resource configuration message further carries a terminal identifier of the target terminal, and the method further includes:
and allocating the terminal identification of the target terminal in the SR resource for the target terminal.
In this way, different terminal identifiers can be allocated to terminals using the same SR resource, and when the base station receives a scheduling request through the SR resource, the base station can distinguish which terminal sent the scheduling request according to the terminal identifier.
According to a second aspect of the embodiments of the present disclosure, there is provided a method of allocating scheduling request, SR, resources, the method comprising:
receiving an SR resource configuration message sent by a base station, wherein the SR resource configuration message carries a time-frequency resource position of an SR resource allocated by the base station, and the SR resource is an SR resource commonly used by a plurality of terminals;
and sending a scheduling request to the base station based on the time-frequency resource position of the SR resource.
Optionally, the scheduling request carries a local terminal identifier, and the method further includes:
acquiring a pre-stored cell wireless network temporary identifier, and taking the cell wireless network temporary identifier as the local terminal identifier; or,
and acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is a terminal identifier of a local terminal distributed by the base station in the SR resource.
Optionally, after the sending the scheduling request to the base station, the method further includes:
and if the uplink resource configuration message sent by the base station is not received within the preset waiting time, the scheduling request is sent to the base station again when the preset back-off time is reached until the uplink resource configuration message sent by the base station is received.
Therefore, when the scheduling request sent by the target terminal conflicts with the scheduling requests of other terminals, the target terminal can resend the scheduling request according to the retransmission mechanism, and the success rate of sending the scheduling request is improved.
Optionally, the SR resource configuration message further carries a maximum number of times of sending the scheduling request, and the method further includes:
and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
Therefore, the maximum transmission times of the scheduling request is limited, and the condition that the network load is increased due to the fact that the terminal retransmits the scheduling request for multiple times can be avoided.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
the terminal comprises a first allocation module, a second allocation module and a third allocation module, wherein the first allocation module is used for allocating SR resources to a target terminal when a preset SR resource allocation condition is reached, and the SR resources are SR resources commonly used by a plurality of terminals;
a first sending module, configured to send an SR resource configuration message to the target terminal, where the SR resource configuration message carries a time-frequency resource location of the SR resource, so that the target terminal sends a scheduling request through the SR resource.
Optionally, the apparatus further comprises:
a receiving module, configured to receive a scheduling request sent by the target terminal, where the scheduling request carries a terminal identifier of the target terminal;
a second allocating module, configured to allocate uplink resources to the target terminal according to the terminal identifier of the target terminal;
and a second sending module, configured to send an uplink resource configuration message to the target terminal, so that the target terminal sends uplink data to a base station through the uplink resource.
Optionally, the SR resource configuration message further carries a terminal identifier of the target terminal, and the apparatus further includes:
and the third allocation module is used for allocating the terminal identifier of the target terminal in the SR resource to the target terminal.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
a receiving module, configured to receive an SR resource configuration message sent by a base station, where the SR resource configuration message carries a time-frequency resource location of an SR resource allocated by the base station, and the SR resource is an SR resource commonly used by multiple terminals;
and the sending module is used for sending a scheduling request to the base station based on the time-frequency resource position of the SR resource.
Optionally, the scheduling request carries a local terminal identifier, and the apparatus further includes an obtaining module, configured to:
acquiring a pre-stored cell wireless network temporary identifier, and taking the cell wireless network temporary identifier as the local terminal identifier; or,
and acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is a terminal identifier of a local terminal distributed by the base station in the SR resource.
Optionally, the sending module is further configured to:
and if the uplink resource configuration message sent by the base station is not received within the preset waiting time, the scheduling request is sent to the base station again when the preset back-off time is reached until the uplink resource configuration message sent by the base station is received.
Optionally, the SR resource configuration message further carries a maximum number of times of sending the scheduling request, and the sending module is further configured to:
and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
According to a fifth aspect of the embodiments of the present disclosure, there is provided an apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
when a preset SR resource allocation condition is reached, allocating SR resources for a target terminal, wherein the SR resources are SR resources commonly used by a plurality of terminals;
and sending an SR resource configuration message to the target terminal, wherein the SR resource configuration message carries the time-frequency resource position of the SR resource, so that the target terminal sends a scheduling request through the SR resource.
According to a sixth aspect of the embodiments of the present disclosure, there is provided an apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving an SR resource configuration message sent by a base station, wherein the SR resource configuration message carries a time-frequency resource position of an SR resource allocated by the base station, and the SR resource is an SR resource commonly used by a plurality of terminals;
and sending a scheduling request to the base station based on the time-frequency resource position of the SR resource.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the disclosure, when a preset SR resource allocation condition is reached, SR resources are allocated to a target terminal, where the SR resources are SR resources commonly used by multiple terminals, and then an SR resource allocation message is sent to the target terminal, where the SR resource allocation message carries a time-frequency resource location of the SR resources, so that the target terminal sends a scheduling request through the SR resources.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:
FIG. 1 is a system framework diagram shown in accordance with an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a method of allocating SR resources in accordance with an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating an apparatus for allocating SR resources in accordance with an example embodiment;
FIG. 4 is a schematic diagram illustrating an apparatus for allocating SR resources in accordance with an example embodiment;
FIG. 5 is a schematic diagram illustrating an apparatus for allocating SR resources in accordance with an example embodiment;
FIG. 6 is a schematic diagram illustrating an apparatus for allocating SR resources in accordance with an example embodiment;
FIG. 7 is a schematic diagram illustrating an apparatus for allocating SR resources in accordance with an example embodiment;
FIG. 8 is a schematic diagram illustrating an apparatus of a base station in accordance with an example embodiment;
fig. 9 is a schematic diagram illustrating a structure of a terminal according to an exemplary embodiment.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The embodiment of the disclosure provides a method for allocating SR resources, which can be implemented by a base station and a terminal together. As shown in fig. 1, the base station may include a processor, a Memory, and a transceiver, where the processor may be a Central Processing Unit (CPU) or the like, and may be configured to allocate an SR resource to a target terminal and determine a time-frequency resource location of the SR resource, where the SR resource is an SR resource commonly used by multiple terminals, the Memory may be a Random Access Memory (RAM), a Flash Memory (Flash Memory), or the like, and may be configured to store received data, data required by a Processing process, data generated in the Processing process, and the like, such as a time-frequency location of each SR resource And an uplink resource configuration message. In addition, the base station may also include components such as power supplies and network ports.
The terminal may include a transceiver and a memory, where the transceiver may be configured to receive an SR resource configuration message sent by a base station, and send a scheduling request to the base station based on a time-frequency resource location of the SR resource; the Memory may be a RAM (Random Access Memory), a Flash (Flash Memory), and the like, and may be configured to store received data, data required by a processing procedure, data generated in the processing procedure, and the like, such as an SR resource configuration message and uplink data that needs to be sent. The terminal may also include components such as a power supply, a display, and bluetooth.
In step 201, when a preset SR resource allocation condition is reached, the base station determines an SR resource allocated for the target terminal.
The SR (scheduling request) resource may be a resource used by the terminal to transmit the scheduling request, and the SR resource may be an SR resource commonly used by multiple terminals, that is, multiple terminals may transmit the scheduling request using the same SR resource. The scheduling request may be used to request the base station to allocate uplink resources for the terminal.
In implementation, the base station may allocate SR resources to a target terminal when a preset SR resource allocation condition is reached, where the target terminal may be any terminal accessing the base station. The SR resource allocation conditions may be various, for example, the base station may allocate SR resources for the target terminal after the target terminal accesses the base station; or, a network may have a failure (such as a network restart or a network outage) during the operation, and the base station may reallocate SR resources for each terminal accessing the base station after the network failure is recovered. The SR resource may be an SR resource commonly used by a plurality of terminals in the base station, and may be referred to as a competitive SR resource.
When the base station allocates the SR resources to the target terminal, one SR resource may be selected from SR resources allocated to other terminals as the SR resource of the target terminal, and then the time-frequency resource location of the SR resource is obtained. Or, the base station may also determine, in the unused transmission resources, an SR resource for the target terminal to send the scheduling request, and then obtain a time-frequency resource location of the SR resource, and the subsequent base station may allocate other terminals to the SR resource. Wherein, the time frequency resource position can be used to indicate the position of the SR resource in the subframe. The base station may also determine the SR period of the target terminal if the SR resources allocated by the base station for the target terminal are periodic. The SR period may be a period in which the target terminal transmits a scheduling request, and the SR period may include at least one subframe. For example, the SR period is 3, the target terminal may transmit a scheduling request every 3 MSs (3 subframes). In addition, for the case that the base station sets the SR period of the target terminal, the time-frequency resource location may also be used to indicate the location of the subframe to which the SR resource allocated to the target terminal belongs in the SR period (i.e., indicate that the SR resource is in the second subframe within the SR period). SR periods of terminals using the same SR resource may be the same. In addition, the base station may allocate an SR resource to the target terminal in the non-contention transmission resource, and in this case, the SR resource may be used only by the target terminal.
In step 202, the base station transmits an SR resource configuration message to the target terminal.
The SR resource configuration message may carry a time-frequency resource location of the SR resource, so that the target terminal sends the scheduling request through the SR resource.
In implementation, after determining the SR resource allocated to the target terminal, the base station may send an SR resource configuration message to the target terminal, where the SR resource configuration message may carry a time-frequency resource location of the SR resource and an SR period of the target terminal. In addition, the base station may further configure at least one of logical channel indication information, logical channel group indication information, and terminal indication information. Wherein the terminal indication information may be used to indicate that the SR resource is allocated to the target terminal; the logical channel group indication information may be used to indicate that the SR resource belongs to a target logical channel group in each logical channel group corresponding to the target terminal; the logical channel indication information may be used to indicate that the SR resource belongs to a target logical channel in the target logical channel group. Correspondingly, the SR resource configuration message may further carry at least one of logical channel indication information, logical channel group indication information, and terminal indication information. In this way, the target terminal may transmit the scheduling information through the logical channel group configured by the base station and/or the SR resource in the logical channel.
Optionally, in order to distinguish terminals using the same SR resource, the base station may also allocate an identifier to the target terminal, and the corresponding processing procedure may be as follows: and allocating the terminal identification of the target terminal in the SR resource for the target terminal. Correspondingly, the SR resource configuration message may also carry a terminal identifier of the target terminal.
In implementation, the base station allocates a competitive SR resource to the target terminal, different terminals use the same SR resource to transmit scheduling information, in order to distinguish terminals using the same SR resource, after the base station allocates the SR resource to the target terminal, the base station may also allocate a terminal identifier of the target terminal in the SR resource, and the base station may store the terminal identifier of the target terminal and the SR resource correspondingly to establish a corresponding relationship between the terminal identifier and the SR resource. The subsequent target terminal may send the scheduling request carrying the terminal identifier, so that, after the base station receives the scheduling request sent on a certain SR resource, the terminal sending the scheduling request may be determined according to the terminal identifier in the scheduling request.
In step 203, the target terminal receives an SR resource configuration message sent by the base station, where the SR resource configuration message carries a time-frequency resource location of an SR resource allocated by the base station, and the SR resource is an SR resource commonly used by multiple terminals.
In implementation, the target terminal may receive the SR resource configuration message sent by the base station, may then parse the SR resource configuration message, obtain the time-frequency resource location and the SR period carried therein, and further may determine, according to the time-frequency resource location and the SR period, the SR resource allocated for the base station itself. If the SR resource configuration message further carries at least one of logical channel indication information, logical channel group indication information, and terminal indication information, the target terminal may determine a logical channel and/or a logical channel group to which the SR resource belongs according to the logical channel indication information, the logical channel group indication information, and the terminal indication information.
In step 204, the target terminal sends a scheduling request to the base station based on the time-frequency resource location of the SR resource.
In implementation, when the target terminal needs to send uplink data to the base station and the target terminal does not currently have uplink resources, the target terminal may send a scheduling request to the base station on the SR resources, so that the base station allocates uplink resources for itself.
Optionally, the scheduling request may carry a local terminal identifier, and correspondingly, the target terminal needs to obtain the local terminal identifier, and the specific processing procedure may be as follows:
in the first mode, a pre-stored cell radio network temporary identifier is obtained, and the cell radio network temporary identifier is used as a local terminal identifier.
In implementation, after the target terminal accesses the base station, the base station may allocate a C-RNTI (Cell Radio Network Temporary Identifier) to the target terminal. The C-RNTI may uniquely identify the target terminal within the range covered by the base station (i.e., within the cell). When the target terminal needs to send the scheduling request, the pre-stored C-RNTI can be acquired, and then the C-RNTI is added into the scheduling request and sent to the base station.
And acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is the terminal identifier of the local terminal allocated by the base station in the SR resource.
In implementation, as described above, after the base station allocates the SR resource to the target terminal, the base station may also allocate a terminal identifier of the target terminal in the SR resource to the target terminal, and the base station may carry the terminal identifier in the SR resource configuration message and send the SR resource configuration message to the target terminal, and the target terminal may parse the SR resource configuration message after receiving the SR resource configuration message to obtain the terminal identifier. When the target terminal needs to send the scheduling request, the target terminal may add the terminal identifier to the scheduling request and then send the scheduling request to the base station.
Optionally, after receiving the scheduling request sent by the target terminal, the base station may allocate uplink resources to the target terminal, and the corresponding processing procedure may be as follows: receiving a scheduling request sent by a target terminal, wherein the scheduling request carries a terminal identifier of the target terminal; allocating uplink resources to the target terminal according to the terminal identifier of the target terminal; and sending an uplink resource configuration message to the target terminal so that the target terminal sends uplink data to the base station through the uplink resource.
In implementation, the target terminal may send a scheduling request to the base station on the SR resource allocated by the base station, where the scheduling request may carry a terminal identifier of the target terminal, and the terminal identifier of the target terminal may be a C-RNTI or a terminal identifier of the target terminal in the SR resource. In addition, the scheduling request may also carry current buffer status information of the terminal, and the data amount of uplink data that needs to be sent. After receiving the scheduling request, the base station may parse the scheduling request to obtain the terminal identifier therein. For the case that the terminal identifier is the terminal identifier of the target terminal in the SR resource, the base station may determine the target terminal that sends the scheduling request according to the pre-stored correspondence between the terminal identifier and the SR resource, the SR resource that receives the scheduling request, and the terminal identifier. Then, the base station may allocate uplink resources to the target terminal, and send an uplink resource configuration message to the target terminal, so that the target terminal sends uplink data to the base station through the uplink resources. For the condition that the terminal identification is C-RNTI, the base station can directly determine the target terminal through the C-RNTI.
Optionally, because the target terminal sends the scheduling request based on the competitive SR resource, when multiple terminals send the scheduling request through the SR resource at the same time, the scheduling request of the target terminal may fail to be sent, at this time, the target terminal may adopt a retransmission mechanism to improve a success rate of sending the scheduling request, and the corresponding processing procedure may be as follows: and if the uplink resource configuration message sent by the base station is not received within the preset waiting time, the scheduling request is sent to the base station again when the preset back-off time is reached until the uplink resource configuration message sent by the base station is received.
In implementation, the waiting duration of the uplink resource configuration message may be pre-stored in the target terminal, and the target terminal may start timing after sending the scheduling request to the base station. And if the uplink resource configuration message sent by the base station is not received when the preset waiting time is reached, indicating that the sending of the scheduling request fails. The target terminal may determine a backoff duration and begin to re-time, and when the backoff duration is reached, the target terminal may re-send the scheduling request. The manner in which the target terminal determines the backoff duration may be various. For example, the target terminal may store a time length range of the backoff time length in advance, such as [0, 20ms ], and the target terminal may randomly select one time length within the time length range as the backoff time length. Or, if the SR resource of the target terminal is periodic, the target terminal may store a ratio range of the backoff duration and the SR period, for example, [1, 4], and the target terminal may randomly select a value in the ratio range, and multiply the value by the duration of the SR period to obtain the backoff duration, for example, the selected ratio is 3, the duration of the SR period is 5MS, and the backoff duration is 15 MS. When the backoff time length is reached, the target terminal can send the scheduling request to the base station again, then wait, if the uplink resource configuration message sent by the base station is received within the preset waiting time length, stop sending the scheduling request and perform subsequent processing, otherwise, determine the backoff time length, send the scheduling request when the backoff time length is reached, and so on until the target terminal receives the uplink resource configuration message sent by the base station.
Optionally, in order to prevent the terminal from retransmitting the scheduling request multiple times, which may cause an increase in network load, the base station may set a maximum transmission time of the scheduling request, and accordingly, a processing procedure of the target terminal may be as follows: and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
In implementation, after allocating the SR resource to the target terminal, the base station may further set the maximum transmission frequency of the scheduling request, and then may carry the maximum transmission frequency of the scheduling request in the SR resource configuration message to transmit to the target terminal, and after receiving the SR resource configuration message, the target terminal may obtain the maximum transmission frequency. The target terminal may count the transmitted scheduling requests to obtain the number of currently transmitted scheduling requests, for example, the count is increased by 1 every time the target terminal transmits one scheduling request based on the SR resource. The target terminal can judge whether the number of the currently sent scheduling requests is equal to the maximum sending times, and if not, the target terminal can continue to send the scheduling requests to the base station based on the retransmission mechanism; if so, the transmission of the scheduling request to the base station is stopped, and the SR resource configuration message may be deleted, for example, the MAC module of the target terminal may notify the RRC module of the deletion of the SR resource configuration message (i.e., release the SR resource).
In the embodiment of the disclosure, when a preset SR resource allocation condition is reached, SR resources are allocated to a target terminal, where the SR resources are SR resources commonly used by multiple terminals, and then an SR resource allocation message is sent to the target terminal, where the SR resource allocation message carries a time-frequency resource location of the SR resources, so that the target terminal sends a scheduling request through the SR resources.
Based on the same technical concept, an embodiment of the present disclosure further provides an apparatus for allocating SR resources, as shown in fig. 3, the apparatus including: a first distribution module 310 and a first transmission module 320.
A first allocating module 310, configured to allocate an SR resource to a target terminal when a preset SR resource allocation condition is reached, where the SR resource is an SR resource commonly used by multiple terminals;
a first sending module 320, configured to send an SR resource configuration message to the target terminal, where the SR resource configuration message carries a time-frequency resource location of the SR resource, so that the target terminal sends a scheduling request through the SR resource.
Optionally, as shown in fig. 4, the apparatus further includes:
a receiving module 330, configured to receive a scheduling request sent by the target terminal, where the scheduling request carries a terminal identifier of the target terminal;
a second allocating module 340, configured to allocate uplink resources to the target terminal according to the terminal identifier of the target terminal;
a second sending module 350, configured to send an uplink resource configuration message to the target terminal, so that the target terminal sends uplink data to the base station through the uplink resource.
Optionally, the SR resource configuration message further carries a terminal identifier of the target terminal, as shown in fig. 5, where the apparatus further includes:
a third allocating module 360, configured to allocate, to the target terminal, the terminal identifier of the target terminal in the SR resource.
Based on the same technical concept, an embodiment of the present disclosure further provides an apparatus for allocating SR resources, as shown in fig. 6, the apparatus including: a receiving module 610 and a transmitting module 620.
A receiving module 610, configured to receive an SR resource configuration message sent by a base station, where the SR resource configuration message carries a time-frequency resource location of an SR resource allocated by the base station, and the SR resource is an SR resource commonly used by multiple terminals;
a sending module 620, configured to send a scheduling request to the base station based on the time-frequency resource location of the SR resource.
Optionally, the scheduling request carries a local terminal identifier, as shown in fig. 7, the apparatus further includes an obtaining module 630, configured to:
acquiring a pre-stored cell wireless network temporary identifier, and taking the cell wireless network temporary identifier as the local terminal identifier; or,
and acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is a terminal identifier of a local terminal distributed by the base station in the SR resource.
Optionally, the sending module 620 is further configured to:
and if the uplink resource configuration message sent by the base station is not received within the preset waiting time, the scheduling request is sent to the base station again when the preset back-off time is reached until the uplink resource configuration message sent by the base station is received.
Optionally, the SR resource configuration message further carries a maximum number of times of sending the scheduling request, and the sending module 620 is further configured to:
and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In the embodiment of the disclosure, when a preset SR resource allocation condition is reached, SR resources are allocated to a target terminal, where the SR resources are SR resources commonly used by multiple terminals, and then an SR resource allocation message is sent to the target terminal, where the SR resource allocation message carries a time-frequency resource location of the SR resources, so that the target terminal sends a scheduling request through the SR resources.
It should be noted that: in the apparatus for allocating SR resources according to the foregoing embodiment, when allocating SR resources, only the division of the functional modules is described as an example, and in practical applications, the function allocation may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the apparatus for allocating SR resources and the method embodiment for allocating SR resources provided by the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiment and are not described herein again.
Yet another exemplary embodiment of the present disclosure provides a block diagram of an apparatus 1900 for allocating SR resources. For example, the apparatus 1900 may be provided as a base station. Referring to fig. 8, the device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, executable by the processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method of controlling a device.
The device 1900 may also include a power component 1926 configured to perform power management of the device 1900, a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input/output (I/O) interface 1958. The device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
The apparatus 1900 may include a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors to include instructions for the base station to perform the above-described method of allocating SR resources.
In the embodiment of the disclosure, when a preset SR resource allocation condition is reached, SR resources are allocated to a target terminal, where the SR resources are SR resources commonly used by multiple terminals, and then an SR resource allocation message is sent to the target terminal, where the SR resource allocation message carries a time-frequency resource location of the SR resources, so that the target terminal sends a scheduling request through the SR resources.
The embodiment of the disclosure also shows a structural schematic diagram of a terminal. The terminal can be a mobile terminal such as a mobile phone or a tablet computer. Referring to fig. 9, terminal 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing elements 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operation at the terminal 800. Examples of such data include instructions for any application or method operating on terminal 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen providing an output interface between the terminal 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the audio output device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
In an exemplary embodiment, the terminal 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the terminal 800, to perform the above-described method of allocating SR resources is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In the embodiment of the disclosure, when a preset SR resource allocation condition is reached, SR resources are allocated to a target terminal, where the SR resources are SR resources commonly used by multiple terminals, and then an SR resource allocation message is sent to the target terminal, where the SR resource allocation message carries a time-frequency resource location of the SR resources, so that the target terminal sends a scheduling request through the SR resources.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (14)
1. A method of allocating scheduling request, SR, resources, the method comprising:
when a preset SR resource allocation condition is reached, selecting SR resources of a target terminal from unused SR resources, wherein the SR resources of the target terminal can be subsequently allocated to another terminal, or selecting the SR resources of the target terminal from the SR resources allocated to other terminals, and the SR resources are SR resources commonly used by a plurality of terminals;
sending an SR resource configuration message to the target terminal, wherein the SR resource configuration message carries the time-frequency resource position of the SR resource, so that the target terminal sends a scheduling request carrying a local terminal identifier through the SR resource, and the local terminal identifier is a pre-stored cell radio network temporary identifier;
the method further comprises the following steps:
if the target terminal does not receive the uplink resource configuration message sent by the base station within the preset waiting time, the target terminal sends the scheduling request to the base station again when the preset backoff time is reached until the target terminal receives the uplink resource configuration message sent by the base station, wherein in the ratio range of the prestored backoff time and the SR cycle, the ratio of the backoff time to the SR cycle is determined, the product of the ratio and the SR cycle is used as the preset backoff time, and the SR cycle is the cycle for the target terminal to send the scheduling request.
2. The method of claim 1, further comprising:
receiving a scheduling request sent by the target terminal, wherein the scheduling request carries a terminal identifier of the target terminal;
allocating uplink resources to the target terminal according to the terminal identifier of the target terminal;
and sending an uplink resource configuration message to the target terminal so that the target terminal sends uplink data to the base station through the uplink resource.
3. The method according to claim 1 or 2, wherein the SR resource configuration message further carries a terminal identifier of the target terminal, and the method further comprises:
and allocating the terminal identification of the target terminal in the SR resource for the target terminal.
4. A method of allocating scheduling request, SR, resources, the method comprising:
receiving an SR resource configuration message sent by a base station, wherein the SR resource configuration message is obtained by selecting an SR resource of a target terminal from unused SR resources of the base station, the SR resource of the target terminal can be subsequently allocated to another terminal, or the base station sends the SR resource of the target terminal to the target terminal after selecting the SR resource of the target terminal from the SR resources allocated to other terminals, the SR resource configuration message carries a time-frequency resource position of the SR resource allocated by the base station, and the SR resource is an SR resource commonly used by a plurality of terminals;
sending a scheduling request carrying a local terminal identifier to the base station based on the time-frequency resource position of the SR resource, wherein the local terminal identifier is a pre-stored cell wireless network temporary identifier;
the method further comprises the following steps:
and if the uplink resource configuration message sent by the base station is not received within a preset waiting time, re-sending the scheduling request to the base station when the preset backoff time is reached until the uplink resource configuration message sent by the base station is received, wherein in a ratio range of prestored backoff time and SR period, the ratio of the backoff time to the SR period is determined, and the product of the ratio and the SR period is used as the preset backoff time, and the SR period is the period for the target terminal to send the scheduling request.
5. The method according to claim 4, wherein the scheduling request carries a local terminal identifier, and the method comprises:
and acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is a terminal identifier of a local terminal distributed by the base station in the SR resource.
6. The method of claim 4, wherein the SR resource configuration message further carries a maximum number of transmissions of a scheduling request, the method further comprising:
and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
7. An apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
the terminal comprises a first allocation module and a second allocation module, wherein the first allocation module is used for selecting SR resources of a target terminal from unused SR resources when a preset SR resource allocation condition is reached, the SR resources of the target terminal can be allocated to other terminals in the following or selected from SR resources allocated to other terminals, and the SR resources are SR resources commonly used by a plurality of terminals;
a first sending module, configured to send an SR resource configuration message to the target terminal, where the SR resource configuration message carries a time-frequency resource location of the SR resource, so that the target terminal sends a scheduling request carrying a local terminal identifier through the SR resource, where the local terminal identifier is a pre-stored cell radio network temporary identifier;
the device further comprises:
and a retransmission module, configured to, if the target terminal does not receive the uplink resource configuration message sent by the base station within a preset waiting duration, retransmit the scheduling request to the base station by the target terminal every time a preset backoff duration is reached until the target terminal receives the uplink resource configuration message sent by the base station, where in a ratio range of a prestored backoff duration and an SR period, a ratio of the backoff duration to an SR period is determined, a product of the ratio and the SR period is used as the preset backoff duration, and the SR period is a period for the target terminal to send the scheduling request.
8. The apparatus of claim 7, further comprising:
a receiving module, configured to receive a scheduling request sent by the target terminal, where the scheduling request carries a terminal identifier of the target terminal;
a second allocating module, configured to allocate uplink resources to the target terminal according to the terminal identifier of the target terminal;
and a second sending module, configured to send an uplink resource configuration message to the target terminal, so that the target terminal sends uplink data to a base station through the uplink resource.
9. The apparatus according to claim 7 or 8, wherein the SR resource configuration message further carries a terminal identifier of the target terminal, and the apparatus further comprises:
and the third allocation module is used for allocating the terminal identifier of the target terminal in the SR resource to the target terminal.
10. An apparatus for allocating scheduling request, SR, resources, the apparatus comprising:
a receiving module, configured to receive an SR resource configuration message sent by a base station, where the SR resource configuration message is an SR resource that the base station selects a target terminal from unused SR resources, where the SR resource of the target terminal may be subsequently allocated to another terminal, or the base station sends the SR resource of the target terminal to the target terminal after selecting the SR resource of the target terminal from SR resources allocated to other terminals, where the SR resource configuration message carries a time-frequency resource location of the SR resource allocated by the base station, and the SR resource is an SR resource that is commonly used by multiple terminals;
a sending module, configured to send a scheduling request carrying a local terminal identifier to the base station based on a time-frequency resource location of the SR resource, where the local terminal identifier is a pre-stored cell radio network temporary identifier;
the device further comprises:
and a retransmission module, configured to, if the uplink resource configuration message sent by the base station is not received within a preset waiting duration, resend the scheduling request to the base station whenever a preset backoff duration is reached until the uplink resource configuration message sent by the base station is received, where in a ratio range of a prestored backoff duration and an SR period, a ratio of the backoff duration to the SR period is determined, and a product of the ratio and the SR period is used as the preset backoff duration, where the SR period is used for the target terminal to send the scheduling request.
11. The apparatus of claim 10, wherein the scheduling request carries a local terminal identifier, and the apparatus further comprises an obtaining module, configured to:
and acquiring a terminal identifier in the SR resource configuration message, wherein the terminal identifier is a terminal identifier of a local terminal distributed by the base station in the SR resource.
12. The apparatus of claim 10, wherein the SR resource configuration message further carries a maximum number of transmissions of a scheduling request, and the sending module is further configured to:
and when the maximum transmission times of the scheduling request is reached, stopping transmitting the scheduling request to the base station, and deleting the SR resource configuration message.
13. An apparatus for allocating scheduling request, SR, resources, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
when a preset SR resource allocation condition is reached, selecting SR resources of a target terminal from unused SR resources, wherein the SR resources of the target terminal can be subsequently allocated to another terminal, or selecting the SR resources of the target terminal from the SR resources allocated to other terminals, and the SR resources are SR resources commonly used by a plurality of terminals;
sending an SR resource configuration message to the target terminal, wherein the SR resource configuration message carries the time-frequency resource position of the SR resource, so that the target terminal sends a scheduling request carrying a local terminal identifier through the SR resource, and the local terminal identifier is a pre-stored cell radio network temporary identifier;
the device further comprises:
if the target terminal does not receive the uplink resource configuration message sent by the base station within the preset waiting time, the target terminal sends the scheduling request to the base station again when the preset backoff time is reached until the target terminal receives the uplink resource configuration message sent by the base station, wherein in the ratio range of the prestored backoff time and the SR cycle, the ratio of the backoff time to the SR cycle is determined, the product of the ratio and the SR cycle is used as the preset backoff time, and the SR cycle is the cycle for the target terminal to send the scheduling request.
14. An apparatus for allocating scheduling request, SR, resources, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving an SR resource configuration message sent by a base station, wherein the SR resource configuration message is obtained by selecting an SR resource of a target terminal from unused SR resources of the base station, the SR resource of the target terminal can be subsequently allocated to another terminal, or the base station sends the SR resource of the target terminal to the target terminal after selecting the SR resource of the target terminal from the SR resources allocated to other terminals, the SR resource configuration message carries a time-frequency resource position of the SR resource allocated by the base station, and the SR resource is an SR resource commonly used by a plurality of terminals;
based on the time-frequency resource position of the SR resource, sending a scheduling request carrying a local terminal identifier and the SR cycle of the target terminal to the base station, wherein the local terminal identifier is a pre-stored cell wireless network temporary identifier;
the device further comprises:
and if the uplink resource configuration message sent by the base station is not received within a preset waiting time, the scheduling request is sent to the base station again when the preset backoff time is reached until the uplink resource configuration message sent by the base station is received, wherein in a ratio range of prestored backoff time and SR period, the ratio of the backoff time to the SR period is determined, the product of the ratio and the SR period is used as the preset backoff time, and the SR period is used for sending the scheduling request by the target terminal.
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| CN110958695A (en) * | 2018-09-27 | 2020-04-03 | 中兴通讯股份有限公司 | Resource processing method, device and system, and resource receiving method and device |
| CN109644460A (en) * | 2018-11-30 | 2019-04-16 | 北京小米移动软件有限公司 | Dispatch requesting method, device and the storage medium of sidelinks resource |
| CN111352725B (en) * | 2018-12-24 | 2023-08-18 | 杭州海康威视系统技术有限公司 | Storage load balancing method and device |
| CN112118633B (en) * | 2019-06-21 | 2022-10-11 | 华为技术有限公司 | Method, device and system for transmitting scheduling request information |
| CN115277687B (en) * | 2021-04-30 | 2024-02-23 | 北京小米移动软件有限公司 | Resource data acquisition method, resource data acquisition device and storage medium |
| WO2024178658A1 (en) * | 2023-03-01 | 2024-09-06 | Qualcomm Incorporated | Group common resource for scheduling requests |
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| US8660076B2 (en) * | 2010-08-12 | 2014-02-25 | Lg Electronics Inc. | Apparatus and method of transmitting scheduling request in wireless communication system |
| WO2014000201A1 (en) * | 2012-06-28 | 2014-01-03 | 华为技术有限公司 | Uplink resource allocation method and device |
| CN106413092B (en) * | 2015-07-22 | 2019-07-05 | 普天信息技术有限公司 | Uplink resource allocating method and device |
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| CN103796320A (en) * | 2010-01-08 | 2014-05-14 | 华为技术有限公司 | Schedule requesting method and device |
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