Terminal, Base Station, and Scheduling Request Transmission Method

• US 20180070378A1
• Filed: 11/14/2017
• Published: 03/08/2018
• Est. Priority Date: 05/15/2015
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Quan, Wei, Li, Bingzhao, Yang, Xiaodong, Zhang, Jian, Miao, Jinhua, Xu, Bin
• Granted Patent: US 11,122,606 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The present invention relates to a scheduling request transmission method, so as to effectively transmit a scheduling request when scheduling request resources are configured on multiple carriers. The terminal receives a configuration parameter for a scheduling request from a base station; when the scheduling request is triggered, the terminal sends the scheduling request on a selected one carrier of multiple carriers according to the configuration parameter. Scheduling request resources are assigned to the terminal on multiple carriers by sending the configuration parameter, so that the terminal can send the scheduling request on the selected one carrier of the multiple carriers according to the configuration parameter. This provides a solution to effectively transmitting the scheduling request.

Claims

1. An apparatus, which is a terminal or a processor at the terminal, comprising:

a processing circuit, a receiving circuit and a sending circuit;

wherein

the receiving circuit is configured to receive from a network side device, a configuration parameter for a scheduling request, wherein the configuration parameter assigns scheduling request resources on at least two carriers;

the processing circuit is configured to select one carrier from the at least two carriers;

the sending circuit is configured to send according to the configuration parameter, when the scheduling request is triggered, the scheduling request on a scheduling request resource on the selected one carrier of the at least two carriers;

wherein the at least two carriers comprise at least one secondary carrier and a primary carrier;

or the at least two carriers comprise at least two secondary carriers.

2. The apparatus according to claim 1,

wherein the scheduling request resource on the selected one carrier is a valid scheduling request resource on the selected one carrier in a current transmission time interval (TTI);

wherein that the selected one carrier satisfies at least one of following conditions;

the selected one carrier is activated;

a timer of a timing advance group (TAG) in which the selected one carrier is located, does not time out.

3. The apparatus according to claim 1, wherein

the configuration parameter comprises a threshold of a first counter and the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process;

wherein the sending circuit is configured to;

send the scheduling request on the scheduling request resource on the selected one carrier of the at least two carriers when the first counter is less than the threshold of the first counter and increase a value of the first counter by one.

4. The apparatus according to claim 1,

the configuration parameter comprises a threshold of a first counter and the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process;

wherein the processing circuit is further configured to release physical uplink control channel resources and/or uplink reference signal resources that are of all serving carriers when the first counter is not less than the threshold of the first counter.

5. The apparatus according to claim 4, the at least two carrier comprises the at least two secondary carriers,

wherein the processing circuit is configured to release the physical uplink control channel resources and/or the uplink reference signal resources that are of all the secondary carriers.

6. The apparatus according to claim 1, wherein

the configuration parameter comprises a threshold length of a first timer;

wherein the threshold length of the first timer is n times a period of a scheduling request resource on a specific carrier of the at least two carriers, the period of the scheduling request resource on the specific carrier is minimum and n is a positive integer;

wherein the processing circuit is further configured to start the first timer according to the threshold length of the first timer after the scheduling request is sent.

7. A scheduling request sending method at a terminal or a processor at the terminal, the method comprising:

receiving from a network side device, a configuration parameter for a scheduling request, wherein the configuration parameter assigns scheduling request resources for sending the scheduling request on at least two carrier;

selecting one carrier from the at least two carriers;

sending according to the configuration parameter, when the scheduling request is triggered, the scheduling request on a scheduling request resource on the selected one carrier of the at least two carriers, wherein the at least two carriers comprise at least one secondary carrier and a primary carrier;

or the at least two carrier comprise at least two secondary carriers.

8. The method according to claim 7,

wherein the scheduling request resource on the selected one carrier is a valid scheduling request resource on the selected one carrier in a current transmission time interval (TTI);

wherein that the selected one carrier satisfies at least one of following conditions;

the selected one carrier is activated;

a timer of a timing advance group (TAG) in which the selected one carrier is located, does not time out.

9. The method according to claim 7,

wherein the configuration parameter comprises a threshold of a first counter, and the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process;

wherein the step of sending the scheduling request, comprising;

sending the scheduling request on the scheduling request resource on the selected one carrier of the at least two carriers when the first counter is less than the threshold of the first counter and increasing a value of the first counter by one.

10. The method according to claim 7,

wherein the configuration parameter comprises a threshold of a first counter, and the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process;

wherein the method further comprises;

releasing physical uplink control channel resources and/or uplink reference signal resources that are of all serving carriers when the first counter is not less than the threshold of the first counter.

11. The method according to claim 10, the at least two carrier comprises the at least two secondary carriers;

wherein the step of the releasing, comprises;

releasing the physical uplink control channel resources and/or the uplink reference signal resources that are of all the secondary carriers.

12. The method according to claim 7,

wherein the configuration parameter comprises a threshold length of a first timer;

wherein the threshold length of the first timer is n times a period of a scheduling request resource on a specific carrier of the at least two carriers, the period of the scheduling request resource on the specific carrier is minimum and n is a positive integer;

wherein the method further comprises;

starting the first timer according to the threshold length of the first timer after the scheduling request is sent.

13. An apparatus which is a network side device or a processor at the network side device, comprising:

a processing circuit and a sending circuit coupled with the processing circuit;

wherein

the processing circuit is configured to determine a configuration parameter for a scheduling request, wherein the configuration parameter assigns scheduling request resources on at least two carrier; and

the sending circuit is configured to send the configuration parameter to a terminal, wherein the configuration parameter is used for the terminal to send the scheduling request on a scheduling request resource on one carrier selected by the terminal from the at least two carriers when the scheduling request is triggered;

wherein the at least two carriers comprises at least one secondary carrier and a primary carrier;

or the at least two carriers comprises at least one secondary carrier.

14. The apparatus according to claim 13, wherein

the configuration parameter comprises a threshold of a first counter, wherein the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process.

15. The apparatus according to claim 13, wherein

the configuration parameter comprises a threshold length of a first timer;

wherein the threshold length of the first timer is n times a period of a scheduling request resource on a specific carrier of the at least two carriers, the period of the scheduling request resource on the specific carrier is minimum and n is a positive integer.

16. A scheduling request configuring method at a network side device or a processor at the network side device, comprising:

determining a configuration parameter for a scheduling request, wherein the configuration parameter assigns scheduling request resources on at least two carrier; and

sending the configuration parameter to a terminal, wherein the configuration parameter is used for the terminal to send the scheduling request on a scheduling request resource on one carrier selected by the terminal from the at least two carriers when the scheduling request is triggered;

wherein the at least two carriers comprises at least one secondary carrier and a primary carrier;

or the at least two carriers comprises at least one secondary carrier.

17. The method according to claim 16, wherein

the configuration parameter comprises a threshold of a first counter, wherein the first counter is used to record a quantity of sending the scheduling request in a same scheduling request process.

18. The method according to claim 16, wherein

the configuration parameter comprises a threshold length of a first timer;

wherein the threshold length of the first timer is n times a period of a scheduling request resource on a specific carrier of the at least two carriers, and the period of the scheduling request resource on the specific carrier is minimum and n is a positive integer.