CN106714309B - user equipment and base station for wireless communication and methods therein - Google Patents
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Abstract
embodiments of the present disclosure provide a method for a user equipment in wireless communication. The method comprises the following steps: receiving a message from a base station, the message being used for configuring a periodic dedicated resource and a periodic shared resource to a user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and when the scheduling request needs to be sent, selecting the first resource from the dedicated resources and the shared resources to send the scheduling request. Embodiments of the present disclosure also provide a method for a base station in wireless communication, a user equipment for wireless communication, and a base station for wireless communication.
Description
Technical Field
embodiments of the present disclosure relate generally to wireless communications, and more particularly, to a method for transmitting a scheduling request in wireless communications, and a user equipment and a base station.
Background
The third Generation partnership project (3GPP) has approved the Study item "Study on tension reduction techniques for LTE" for Rel-13. The purpose of this research project was to study and improve the packet data latency based on Rel-13. Packet data latency is not only important for the perceived system responsiveness, but it is also a parameter that affects throughput. In LTE systems, a number of factors affect the end-to-end total delay of a connected user equipment, UE.
For the uplink, one way to reduce the delay due to scheduling grant acquisition is to allocate frequent Scheduling Request (SR) resources. In case of short SR periods, the control signaling overhead increases dramatically, which reduces the resource utilization efficiency, since more Physical Uplink Control Channel (PUCCH) resources need to be configured in the cell to support the same number of users. In addition, PUCCH resources are configured and reconfigured using dedicated RRC signaling, which makes it difficult to adapt scheduling request resource cycle configuration to load variations of the system.
disclosure of Invention
In view of the above problems in the prior art, an object of embodiments of the present disclosure is to provide a method for transmitting a scheduling request to reduce uplink transmission delay and reduce overhead of a control plane, thereby solving the above and other problems in the prior art.
according to a first aspect of the present disclosure, a method for a user equipment in wireless communication is provided. The method comprises the following steps: receiving a message from a base station, the message being usable to configure a periodic dedicated resource and a periodic shared resource to a user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and when the scheduling request needs to be sent, selecting the first resource from the dedicated resources and the shared resources to send the scheduling request.
In some embodiments, the message may also be used to configure a timer to the user equipment, the timer being used to control the user equipment to transmit the scheduling request on the shared resource. In some embodiments, the message may include radio resource control, RRC, signaling.
In some embodiments, the method may further comprise: starting a timer when a scheduling request is sent; and not transmitting the scheduling request using the shared resource until the timer expires.
In some embodiments, the method may further comprise: the duration of the timer is adjusted based on the transmission status of the scheduling request. In some embodiments, if no scheduling request needs to be sent during the timer running, the duration of the timer is decreased according to a certain rule. In some embodiments, the specific rule may be predefined or may be transmitted by the base station to the user equipment. In some embodiments, the particular rule may include: exponential rules, linear rules, or fixed step size rules.
In some embodiments, if there is a scheduling request to send during the timer running, the duration of the timer may be adjusted to an initial value after sending the scheduling request on the selected resource. In some embodiments, the initial value may be greater than a period of the shared resource.
In some embodiments, the method may further comprise: timers of different durations are used for different types of traffic of the user equipment. In some embodiments, the method may further comprise: the shared resources are used only for certain types of traffic. In some embodiments, the periodicity of the dedicated resources may be greater than the periodicity of the shared resources.
According to a second aspect of the present disclosure, a method for a base station in wireless communication is provided. The method comprises the following steps: sending a message to a user equipment, the message being usable to configure a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and detecting a scheduling request from the user equipment on the dedicated resources and the shared resources.
In some embodiments, the message may also be used to configure a timer to the user equipment, the timer being used to control the user equipment to transmit the scheduling request on the shared resource.
In some embodiments, the detection of one or more shared resources on a shared resource may be excluded based on the duration of the timer.
In some embodiments, the method may further comprise: and sending a specific rule to the user equipment, and if the user equipment does not have a scheduling request to be sent during the running period of the timer, reducing the duration of the timer according to the specific rule. In some embodiments, the particular rule may include: exponential rules, linear rules, or fixed step size rules.
According to a third aspect of the present disclosure, a user equipment for wireless communication is provided. The user equipment includes: a receiving unit configured to receive a message from a base station, the message being used for configuring a periodic dedicated resource and a periodic shared resource to a user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and a transmitting unit configured to select a resource that comes earlier of the dedicated resource and the shared resource to transmit the scheduling request when transmitting the scheduling request.
according to a fourth aspect of the present disclosure, a base station for wireless communication is provided. The base station includes: a transmitting unit configured to transmit a message to a user equipment, the message being used for configuring a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and a detecting unit configured to detect a scheduling request from the user equipment on the dedicated resource and the shared resource.
Currently, the scheduling request resource is allocated to the user equipment via RRC signaling, the period of the scheduling request resource can be configured to be 1-80 ms, and the configuration of the period of the scheduling request resource is difficult to consider both the delay and the signaling overhead. Embodiments of the present disclosure propose an adaptive scheduling request scheme with variable periodicity. One UE can be configured to have a dedicated scheduling request resource and a shared scheduling request resource, and the use of the shared scheduling request resource can be controlled based on the transmission state of the scheduling request.
by adopting this scheme, the scheduling request can be transmitted with a short period, thus reducing the acquisition time of the scheduling grant, and the scheduling request resource is efficiently used, thus reducing the overhead of control signaling. In addition, the scheme of the disclosure also solves the conflict problem caused by the shared resources used by a group of user equipment. In contrast to conventional shared scheduling request resource solutions, collisions on the shared scheduling request resources can be reduced by the introduction of timers.
Drawings
The above and other objects, features and advantages of the embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
Fig. 1 schematically illustrates an overview of uplink transmission delay in an existing wireless communication system;
Fig. 2 schematically shows a flow diagram of a method for a user equipment in wireless communication, according to an embodiment of the present disclosure;
Fig. 3 schematically shows a flow chart of a method for a base station in wireless communication according to an embodiment of the present disclosure;
fig. 4 schematically illustrates one specific example according to an embodiment of the present disclosure;
fig. 5 schematically shows a block diagram of a user equipment for use in wireless communication according to an embodiment of the present disclosure; and
Fig. 6 schematically shows a block diagram of a base station for use in wireless communications, in accordance with an embodiment of the present disclosure.
Detailed Description
The principles and spirit of the present disclosure will be described with reference to a number of exemplary embodiments shown in the drawings. It is understood that these specific embodiments are described merely to enable those skilled in the art to better understand and implement the present disclosure, and are not intended to limit the scope of the present disclosure in any way.
Fig. 1 schematically shows an overview of uplink transmission delay in an existing wireless communication system. As shown in fig. 1, a user equipment having data to transmit has to transmit a Scheduling Request (SR) and receive a scheduling grant from a base station eNodeB before transmitting a data packet. In order to send a scheduling request, the user equipment has to wait for SR-valid physical uplink control channel PUCCH resources, which have a periodicity of 1-80 ms.
After the scheduling request is sent on the PUCCH, the eNodeB decodes the scheduling request and assigns a scheduling grant, which is sent to the user equipment. Therefore, one way to reduce the delay is to configure frequent scheduling request resources. The scheduling request resource is configured to the user equipment via RRC signaling. Since LTE Rel-9, the periodicity of scheduling requests can be configured to fall to 1 millisecond. Configuring a short scheduling request period comes at the cost of higher PUCCH resource consumption. For example, the scheduling request capacity supported on each Physical Resource Block (PRB) is 18 user equipments, and if 180 user equipments are supported, the number of PRBs is equal to 180/18-10. If a bandwidth of 10MHz and a scheduling request period of 1 ms are assumed, then 20% of the resources will be used for scheduling requests, which is a heavy control channel burden.
Therefore, in an embodiment of the present disclosure, an adaptive scheduling request scheme with varying periodicity is proposed. One UE can be configured to have a dedicated scheduling request resource and a shared scheduling request resource, and the use of the shared scheduling request resource can be controlled based on the transmission state of the scheduling request.
By adopting this scheme, the scheduling request can be transmitted with a short period, thus reducing the acquisition time of the scheduling grant, and the scheduling request resource is efficiently used, thus reducing the overhead of control signaling. In addition, the scheme of the disclosure also solves the conflict problem caused by the shared resources used by a group of user equipment. In contrast to conventional shared scheduling request resource solutions, collisions on the shared scheduling request resources can be reduced by the introduction of timers. The adaptive scheduling request scheme with varying periodicity of embodiments of the present disclosure is described in detail below in conjunction with fig. 2-6.
Fig. 2 schematically shows a flow diagram of a method 200 for a user equipment in wireless communication, according to an embodiment of the present disclosure. As shown in fig. 2, method 200 may proceed to step 201 after starting. In step 201, the user equipment may receive a message from the base station, the message being used to configure to the user equipment a periodic dedicated resource and a periodic shared resource, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request.
It will be appreciated by those skilled in the art that for the dedicated resource, only one user equipment is configured to use the dedicated resource. In contrast, for the shared resource, a group of user devices is configured to use the shared resource.
according to some embodiments of the disclosure, the message may comprise radio resource control, RRC, signaling. Those skilled in the art will appreciate that the base station may also configure the periodic dedicated resource and the periodic shared resource to the user equipment using other available messages besides RRC signaling. Those skilled in the art will also appreciate that the other available messages may be existing messages or existing elements in existing messages in the wireless communication system, or may be new messages or new elements in existing messages.
According to some embodiments of the present disclosure, the message may also be used for configuring, by the base station, a timer to the user equipment, which may be used for controlling the user equipment to transmit the scheduling request on the shared resource. In some other embodiments of the present disclosure, the base station may also use another message to configure the timer to the user equipment. It will be understood by those skilled in the art that the further message may be an existing message or an existing element in an existing message in the wireless communication system, or may be a new message or a new element in an existing message.
According to some embodiments of the present disclosure, the periodicity of the dedicated resources may be greater than the periodicity of the shared resources. With such an arrangement, the user equipment has not only dedicated resources with a large period but also shared resources with a small period, thereby increasing flexibility of sending scheduling requests without significantly increasing system overhead compared to a scheme of only dedicated resources.
The method 200 may then proceed to step 202. In step 202, when a scheduling request needs to be transmitted, the user equipment may select a resource that comes first from the dedicated resource and the shared resource to transmit the scheduling request.
Those skilled in the art will appreciate that in the context of the present disclosure, a user equipment needs to first transmit a scheduling request to a base station on a scheduling request resource when it generates data to transmit to the base station. Since the dedicated resources and the shared resources according to the embodiments of the present disclosure are periodic, when the user equipment needs to transmit a scheduling request at a certain time, one of the periodic dedicated resources and the periodic shared resources that comes first with respect to the time may be selected to transmit the scheduling request.
In a scenario in which the user equipment is configured with a timer, the method 200 may further include, according to some embodiments of the present disclosure: starting a timer when a scheduling request is sent; and not transmitting the scheduling request using the shared resource until the timer expires. By doing so, potential conflicts of different user devices on the shared resource may be reduced.
in a scenario in which the user equipment is configured with a timer, the method 200 may further include, according to some embodiments of the present disclosure: the duration of the timer is adjusted based on the transmission status of the scheduling request. In particular, if no scheduling request needs to be sent during the running of the timer, the duration of the timer may be reduced according to certain rules. On the other hand, if there is a scheduling request to be sent during the running of the timer, the duration of the timer may be adjusted to the initial value after the scheduling request is sent on the selected resource.
According to some embodiments of the present disclosure, the specific rule may be predefined or may be transmitted to the user equipment by the base station, and may include: exponential rules, linear rules, fixed step size rules, or other suitable rules, etc., or a combination of these rules. In addition, the initial value may be greater than a period of the shared resource.
According to some embodiments of the disclosure, the method 200 may further comprise: timers of different durations are used for different types of traffic of the user equipment. Those skilled in the art will appreciate that the different types of traffic herein may be classified according to various criteria. As one non-limiting example, the different types of traffic may include emergency traffic and non-emergency traffic, where emergency traffic may use a timer of shorter duration, and non-emergency traffic may use a timer of longer duration. According to some embodiments of the disclosure, the method 200 may further comprise: the shared resources are used only for certain types of traffic. For example, the shared resources and timers may be used only for emergency services as illustrated above.
After completing step 202, method 200 may end.
Fig. 3 schematically shows a flow chart of a method 300 for a base station in wireless communication according to an embodiment of the present disclosure. As shown in fig. 3, method 300 may proceed to step 301 after starting. In step 301, the base station may send a message to the user equipment, the message being used to configure to the user equipment a periodic dedicated resource and a periodic shared resource, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request. Other properties and characteristics of the message and the dedicated and shared resources are the same or similar to those of method 200 above and will not be described again here.
according to some embodiments of the present disclosure, the message may also be used by the base station to configure a timer to the user equipment, the timer being used to control the user equipment to transmit the scheduling request on the shared resource. Other features and characteristics of the timer are the same or similar to those of method 200 above and will not be described in detail herein.
According to some embodiments of the present disclosure, the method 300 may further comprise: and sending a specific rule to the user equipment, and if the user equipment does not have a scheduling request to be sent during the running period of the timer, reducing the duration of the timer according to the specific rule. In some embodiments, the particular rule may include: exponential rules, linear rules, or fixed step size rules.
the method 300 may then proceed to step 302. In step 302, the base station may detect a scheduling request from a user equipment on dedicated resources and shared resources. As will be appreciated by those skilled in the art, since both dedicated resources and shared resources are configured to the user equipment by the base station, the base station may be aware of the detection of scheduling requests from the user equipment on these resources. Further, since the base station does not know when the user equipment will need to send a scheduling request, the base station will detect on all dedicated resources and shared resources without configuring the above-mentioned timer.
According to some embodiments of the present disclosure, the base station may exclude detecting one or more shared resources on the shared resources based on a duration of the timer. As will be understood by those skilled in the art, in the scenario where the timer is configured, if the base station detects a scheduling request from a certain user equipment on a certain resource of the dedicated resources or the shared resources, since the timer is configured to the user equipment by the base station, the base station also knows the operation rule of the timer, and then the base station knows that the user equipment does not use the shared resources to send the scheduling request for the duration of the timer from the resource. Thus, the base station may exclude detecting one or more shared resources on the shared resource based on the duration of the timer.
After completing step 302, method 300 may end.
One specific embodiment of an adaptive scheduling request scheme with varying periodicity according to the present disclosure is described below with reference to fig. 4. Fig. 4 schematically illustrates one specific example of an embodiment according to the present disclosure.
Referring to fig. 4, first, a user equipment may be configured with both a dedicated scheduling request resource specific to the user equipment and a shared scheduling request resource. Generally, a dedicated scheduling request resource specific to a user equipment has a long periodicity, and a shared scheduling request resource has a short periodicity. For example, as shown in fig. 4, the period of the dedicated scheduling request resource may be 50 msec, and the period of the shared scheduling request resource may be 10 msec.
Further, the user equipment may be configured with a timer, for example, a 25 ms long timer as shown in fig. 4. If the user equipment sends a scheduling request at time t0, it will not attempt to send a scheduling request again for the duration of the timer. If another new scheduling request is triggered at time t1, the scheduling request is not allowed to be sent on the next shared scheduling resource because the timer is running. The user equipment will then find the latest available scheduling request resource, either the shared scheduling request resource or the dedicated scheduling request resource after the timer expires. In the situation shown in fig. 4, the shared scheduling request resource after the timer expires is the first available scheduling request resource at which the user equipment will send a scheduling request. When the timer expires, a scheduling request may be transmitted on the most recently available scheduling request resource among the shared scheduling request resource and the dedicated scheduling request resource.
furthermore, a continuous timer may be used. In this regard, the timer may be adjusted according to a particular rule based on the transmission status of the scheduling request. Certain rules, such as exponential rules, linear rules, fixed step size rules, any other suitable rules, and the like, may also be combinations of these rules.
The specific rule is described below by way of an example of an exponential rule, as an illustrative example only. First, the initial timer duration may be set to 40 milliseconds. If the user equipment sends a scheduling request, the user equipment will start a timer with an initial duration within which the user equipment will not attempt to send the scheduling request again on the shared scheduling request resource. If another new scheduling request is triggered within the timer duration, the scheduling request is not allowed to be sent on the next shared scheduling resource because the timer is running. The user equipment will then find the latest available scheduling request resource, either the shared scheduling request resource or the dedicated scheduling request resource after the timer expires.
If no new scheduling request is triggered within the timer duration, after the timer expires, a new timer with a duration of 20 milliseconds will be started, where the base 2 exponential rule applies. The same process described above will then continue to be applied. If there is a scheduling request to send within the timer duration, the timer will revert to an initial value (e.g., 40 milliseconds) and be triggered when the scheduling request is sent. It will be appreciated by those skilled in the art that if a linear rule is applied, the timer duration may be linearly decreased by a certain factor from the initial value, for example, in the case of an initial value of 40 ms and a factor of 0.6, the timer duration may be sequentially decreased by 40 ms, 24 ms, 14.4 ms, … …. It will also be appreciated by those skilled in the art that if a fixed step rule is applied, the timer duration may be decreased from an initial value by a fixed step, for example, in the case of an initial value of 40 ms and a step of 5 ms, the timer duration may be decreased by 40 ms, 35 ms, 30 ms, … … in turn.
As described above, if there is no scheduling request to send within the timer duration, the timer is decremented on an exponential rule. If the timer decreases to less than the period of the shared scheduling request resource, the scheduling request may be transmitted on any shared scheduling request resource.
in addition, the shared scheduling request resource may be applied to one user equipment and also to one type of service of one user equipment. Any traffic triggered scheduling request, if applied to one user equipment, may use the shared scheduling request resource based on a specific rule. If applied to one service of the user equipment, only scheduling requests triggered by such service can use the shared scheduling request resource based on a specific rule.
as a further example, the timer may also be applied to one user equipment or to one type of service of the user equipment. If the timer is applied to one type of service, one user equipment may be configured with a plurality of timers for different types of services. In this regard, as one non-limiting example of a type of traffic, it may include emergency traffic and non-emergency traffic. Those skilled in the art will appreciate that the traffic may also be classified in other various ways, and embodiments of the present disclosure are not limited in this respect.
Fig. 5 schematically shows a block diagram of a user equipment, UE, 500 for use in wireless communication according to an embodiment of the present disclosure.
As shown in fig. 5, the user equipment 500 may comprise a receiving unit 501. The receiving unit 501 may be configured to receive a message from a base station, the message being used to configure a periodic dedicated resource and a periodic shared resource to a user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request.
Further, the user equipment 500 may comprise a transmitting unit 502. The transmitting unit 502 may be configured to select a resource that comes first among the dedicated resource and the shared resource to transmit the scheduling request when transmitting the scheduling request.
According to some embodiments of the present disclosure, the message may further be used to configure a timer to the user equipment, the timer being used to control the user equipment to transmit the scheduling request on the shared resource.
According to some embodiments of the present disclosure, the transmitting unit 502 may be further configured to: starting a timer when a scheduling request is sent; and not transmitting the scheduling request using the shared resource until the timer expires.
According to some embodiments of the present disclosure, the user equipment 500 may further include: an adjustment unit 503. The adjusting unit 503 may be configured to adjust the duration of the timer based on the transmission status of the scheduling request.
In some embodiments, the adjusting unit 503 may be further configured to: if no scheduling request needs to be sent during the timer running, the duration of the timer is reduced according to a certain rule. In some embodiments, the specific rule may be predefined or may be transmitted by the base station to the user equipment. In some embodiments, the particular rule includes: exponential rules, linear rules, or fixed step size rules.
In some embodiments, the adjusting unit 503 may be further configured to: and if the scheduling request needs to be sent during the running period of the timer, adjusting the time length of the timer to an initial value after the scheduling request is sent on the selected resource. In some embodiments, the initial value is greater than a period of the shared resource.
According to some embodiments of the disclosure, the user equipment may be further configured to: timers of different durations are used for different types of traffic of the user equipment. According to some embodiments of the disclosure, the user equipment may be further configured to: the shared resources are used only for certain types of traffic. According to some embodiments of the disclosure, the message may comprise radio resource control, RRC, signaling. According to some embodiments of the present disclosure, the periodicity of the dedicated resources may be greater than the periodicity of the shared resources.
Fig. 6 schematically shows a block diagram of a base station eNB 600 for use in wireless communication according to an embodiment of the present disclosure.
As shown in fig. 6, the base station 600 may include a transmitting unit 601. The transmitting unit 601 may be configured to transmit a message to the user equipment, the message being used to configure a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request.
further, the base station 600 may comprise a detection unit 602. The detecting unit 602 may be configured to detect scheduling requests from user equipments on dedicated resources and shared resources.
According to some embodiments of the present disclosure, the message may further be used to configure a timer to the user equipment, the timer being used to control the user equipment to transmit the scheduling request on the shared resource. According to some embodiments of the present disclosure, the detection unit 602 may be further configured to: excluding detection of one or more shared resources on the shared resource based on a duration of the timer.
according to some embodiments of the present disclosure, the transmitting unit 601 may be further configured to transmit a specific rule to the user equipment, and if the user equipment does not have a scheduling request to transmit during the timer running, reduce the duration of the timer according to the specific rule.
According to some embodiments of the disclosure, the specific rule may include: exponential rules, linear rules, or fixed step size rules.
In describing embodiments of the present disclosure, the terms "include" and its derivatives should be interpreted as being open-ended, i.e., "including but not limited to. The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment".
it should be noted that the embodiments of the present disclosure can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided, for example, in programmable memory or on a data carrier such as an optical or electronic signal carrier.
Further, while the operations of the disclosed methods are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Rather, the steps depicted in the flowcharts may change the order of execution. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions. It should also be noted that the features and functions of two or more devices according to the present disclosure may be embodied in one device. Conversely, the features and functions of one apparatus described above may be further divided into embodiments by a plurality of apparatuses.
while the present disclosure has been described with reference to several particular embodiments, it is to be understood that the disclosure is not limited to the particular embodiments disclosed. The disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (32)
1. a method for a user equipment in wireless communications, comprising:
Receiving a message from a base station, the message being used to configure a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and
When a scheduling request needs to be sent, selecting a resource which comes first in the dedicated resource and the shared resource to send the scheduling request;
Wherein the message is further configured to configure a timer to the user equipment, the timer being configured to control the user equipment to send a scheduling request on the shared resource.
2. The method of claim 1, further comprising:
Starting the timer when a scheduling request is sent; and
not transmitting a scheduling request using the shared resource until the timer expires.
3. The method of claim 1, further comprising:
Adjusting a duration of the timer based on a transmission status of a scheduling request.
4. The method of claim 3, wherein adjusting the duration of the timer based on the transmission status of the scheduling request comprises:
If no scheduling request needs to be sent during the running of the timer, the duration of the timer is reduced according to a specific rule.
5. The method according to claim 4, wherein the specific rule is predefined or sent by the base station to the user equipment.
6. The method of claim 4, wherein the particular rule comprises: exponential rules, linear rules, or fixed step size rules.
7. the method of claim 3, wherein adjusting the duration of the timer based on the transmission status of the scheduling request comprises:
And if a scheduling request needs to be sent during the running period of the timer, after the scheduling request is sent on the selected resource, the duration of the timer is adjusted to an initial value.
8. The method of claim 7, wherein the initial value is greater than a periodicity of the shared resources.
9. The method of claim 1, further comprising:
And aiming at different types of services of the user equipment, using timers with different time lengths.
10. The method of claim 1, further comprising:
the shared resources are used only for certain types of traffic.
11. The method of claim 1, wherein the message comprises Radio Resource Control (RRC) signaling.
12. The method of claim 1, wherein a periodicity of the dedicated resources is greater than a periodicity of the shared resources.
13. A method for a base station in wireless communications, comprising:
sending a message to a user equipment, wherein the message is used for configuring a periodic dedicated resource and a periodic shared resource for the user equipment, and the dedicated resource and the shared resource are resources for scheduling request transmission on a physical uplink control channel; and
Detecting a scheduling request from the user equipment on the dedicated resources and the shared resources;
Wherein the message is further configured to configure a timer to the user equipment, the timer being configured to control the user equipment to send a scheduling request on the shared resource.
14. The method of claim 13, wherein detecting a scheduling request from the user equipment on the dedicated resources and the shared resources comprises:
Excluding detection of one or more shared resources on the shared resource based on a duration of the timer.
15. The method of claim 13, further comprising:
And sending a specific rule to the user equipment, and if the user equipment does not have a scheduling request to be sent during the running period of the timer, reducing the duration of the timer according to the specific rule.
16. the method of claim 15, wherein the particular rule comprises: exponential rules, linear rules, or fixed step size rules.
17. A user equipment for wireless communication, comprising:
A receiving unit configured to receive a message from a base station, the message being used for configuring a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and
A transmitting unit configured to select a resource that comes first from the dedicated resource and the shared resource to transmit a scheduling request when the scheduling request needs to be transmitted;
wherein the message is further configured to configure a timer to the user equipment, the timer being configured to control the user equipment to send a scheduling request on the shared resource.
18. The user equipment of claim 17, wherein the sending unit is further configured to:
starting the timer when a scheduling request is sent; and
Not transmitting a scheduling request using the shared resource until the timer expires.
19. The user equipment of claim 17, further comprising:
An adjusting unit configured to adjust a duration of the timer based on a transmission state of a scheduling request.
20. the user equipment of claim 19, wherein the adjustment unit is further configured to:
If no scheduling request needs to be sent during the running of the timer, the duration of the timer is reduced according to a specific rule.
21. The user equipment of claim 20, wherein the specific rule is predefined or sent to the user equipment by the base station.
22. the user equipment of claim 20, wherein the particular rule comprises: exponential rules, linear rules, or fixed step size rules.
23. The user equipment of claim 19, wherein the adjustment unit is further configured to:
And if a scheduling request needs to be sent during the running period of the timer, after the scheduling request is sent on the selected resource, the duration of the timer is adjusted to an initial value.
24. The user equipment of claim 23, wherein the initial value is greater than a periodicity of the shared resources.
25. The user equipment of claim 17, wherein the user equipment is further configured to:
And aiming at different types of services of the user equipment, using timers with different time lengths.
26. The user equipment of claim 17, wherein the user equipment is further configured to:
The shared resources are used only for certain types of traffic.
27. The user equipment of claim 17, wherein the message comprises Radio Resource Control (RRC) signaling.
28. The user equipment of claim 17, wherein a periodicity of the dedicated resources is greater than a periodicity of the shared resources.
29. A base station for wireless communication, comprising:
A sending unit configured to send a message to a user equipment, the message being used for configuring a periodic dedicated resource and a periodic shared resource to the user equipment, the dedicated resource and the shared resource being resources on a physical uplink control channel for transmission of a scheduling request; and
a detecting unit configured to detect a scheduling request from the user equipment on the dedicated resource and the shared resource;
wherein the message is further configured to configure a timer to the user equipment, the timer being configured to control the user equipment to send a scheduling request on the shared resource.
30. the base station of claim 29, wherein the detection unit is further configured to:
Excluding detection of one or more shared resources on the shared resource based on a duration of the timer.
31. The base station of claim 29, wherein the transmitting unit is further configured to:
and sending a specific rule to the user equipment, and if the user equipment does not have a scheduling request to be sent during the running period of the timer, reducing the duration of the timer according to the specific rule.
32. The base station of claim 31, wherein the specific rule comprises: exponential rules, linear rules, or fixed step size rules.
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| CN109565869B (en) * | 2018-11-14 | 2022-08-05 | 北京小米移动软件有限公司 | Scheduling request sending method and device |
| CN112004269B (en) * | 2019-05-27 | 2023-03-24 | 中国电信股份有限公司 | Data transmission processing method, device, base station and storage medium |
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