Resource determining method, base station, and user equipment

• US 9,699,813 B2
• Filed: 04/28/2015
• Issued: 07/04/2017
• Est. Priority Date: 10/29/2012
• 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: Yu, Zheng, Nan, Fang
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): Samuel, Dewanda
• Application Number:
  US14/698,625
• Publication Number:
  US 20150264718A1
• Time in Patent Office: 798 Days
• Field of Search: 370329, 370330
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

This application discloses a resource determining method, abase station, and a user equipment. The method includes: determining a first narrowband resource available to an MTC terminal according to UE information in a random access process and/or common information of a cell; and transmitting control information and/or data on the first narrowband resource. According to the solutions of this application, in a case where the MTC terminal cannot receive RRC signaling, the narrowband resource available to the MTC terminal can still be determined beforehand, and communication between the MTC terminal and a network-side device is implemented by using the narrowband resource.

Claims

1. A method for sending or receiving information, comprising:

determining, by a user equipment (UE) or a base station, a narrowband resource available to a machine type communication (MTC) terminal according to an index of a preamble sequence sent from the UE in a random access process, wherein the UE is an MTC terminal and the narrowband resource comprises at least one of;

a narrowband frequency resource and a time resource; and

sending or receiving, by the UE or the base station, control information and/or data for the UE on the narrowband resource;

wherein determining, by the user equipment (UE) or the base station, the narrowband resource available to the MTC terminal according to the index of the preamble sequence sent from the user equipment, UE, in the random access process comprises;

determining the narrowband resource according to correspondence between the narrowband resource and the index of the preamble sequence.

2. The method according to claim 1, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on the index of the preamble sequence in the random access process.

3. The method according to claim 1, wherein determining, by the user equipment (UE) or the base station, the narrowband resource according to correspondence between the narrowband resource and the index of the preamble sequence comprises:

determining K narrowband frequency resources corresponding to K transmission time points according to the following formula or a form having a correspondence under the following formula;

S_k=[S_1+(k−

1)×

Δ

]modN,

wherein S_1=f(x, y)modN or S_1=floor[f(x, y)/N],

wherein Sk represents an index of a kth narrowband frequency resource, S_1 represents an index of the narrowband frequency resource, f(x, y) represents a function inclusive of x or, x and y, x represents the UE information, y represents the common information of a cell, N represents a total number of narrowband frequency resources, mod represents a modulo operation, floor represents a round-down operation, Δ

is a predetermined value, and k=1. . . , K, wherein K is an integer not less than 1.

4. The method according to claim 1, wherein sending or receiving, by the UE or the base station, the control information and/or the data for the UE on the narrowband resource comprises at least one of the following:

receiving, by the UE, the contention resolution message on the narrowband resource;

sending, by the base station, the contention resolution message on the narrowband resource; and

sending or receiving, by the UE or the base station, dedicated information on the first narrowband resource.

5. The method according to claim 2, wherein the formula is:

an initial UE-specific narrowband frequency resource index of the user equipment=(an index value of a preamble sequence sent by the user equipment) mod N, wherein N is the total number of narrowband frequency resources in a carrier or the total number of narrowband frequency resources in multiple carriers.

6. The method according to claim 1, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on a function inclusive of the index of the preamble sequence, or, the index of the preamble sequence and common information of a cell.

7. A user equipment, comprising:

a transceiver, configured to receive and send a signal; and

a processor, configured to;

determine a narrowband resource available to a machine type communication (MTC) terminal according to an index of a preamble sequence sent by the user equipment (UE) in a random access process, wherein the UE is an MTC terminal and the narrowband resource comprises at least one of;

a narrowband frequency resource and a time resource; and

control the transceiver to send or receive control information and/or data for the UE on the narrowband resource;

wherein the processor configured to determine the narrowband resource available to the MTC terminal according to the index of the preamble sequence sent by the user equipment, UE, in the random access process is further configured to;

determine the narrowband resource according to correspondence between the narrowband resource and the index of the preamble sequence.

8. The user equipment according to claim 7, wherein the processor is configured to determine the narrowband resource according to correspondence between the narrowband resource and the index of the preamble sequence, in the following manner:

by configuring the process to;

determine K narrowband frequency resources corresponding to K transmission time points according to the following formula or a form having a correspondence under the following formula;

S_k=[S_1+(k−

1)×

Δ

]modN,

wherein S_1=f(x, y)modN or S_1=floor[f(x, y)/N],

wherein Sk represents an index of a kth narrowband frequency resource, S_1 represents an index of the narrowband frequency resource, f(x, y) represents a function inclusive of x and/or y, x represents the UE information, y represents the common information of a cell, N represents a total number of narrowband frequency resources, mod represents a modulo operation, floor represents a round-down operation, Δ

is a predetermined value, and k=1,. . ., K, wherein K is an integer not less than 1.

9. The user equipment according to claim 7, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on the index of the preamble sequence in the random access process.

10. The user equipment according to claim 9, wherein the formula is:

an initial UE-specific narrowband frequency resource index of the user equipment=(an index value of a preamble sequence sent by the user equipment) mod N, wherein N is the total number of narrowband frequency resources in a carrier or the total number of narrowband frequency resources in multiple carriers.

11. The user equipment according to claim 7, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on a function inclusive of the index of the preamble sequence, or, the index of the preamble sequence and common information of a cell.

12. The user equipment according to claim 7, wherein the processor configured to send or receive the control information and/or the data for the UE on the narrowband resource is further configured to perform at least one of:

receiving, by the UE, the contention resolution message on the narrowband resource;

sending or receiving, by the UE, dedicated information on the narrowband resource.

13. A base station, comprising:

a transceiver configured to receive and send a signal; and

a processor configured to;

determine a narrowband resource available to a machine type communication (MTC) terminal according to an index of a preamble sequence received from a user equipment (UE) in a random access process, wherein the UE is an MTC terminal and the narrowband resource comprises a narrowband frequency resource and/or a time resource; and

control the transceiver to send or receive control information and/or data for the UE on the narrowband resource;

wherein the processor configured to determine the narrowband resource available to the MTC terminal according to the index of the preamble sequence received from the user equipment, UE, in the random access process is further configured to;

determine the narrowband resource according to correspondence between the narrowband resource and the index of the preamble sequence.

14. The base station according to claim 13, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on the index of the preamble sequence in the random access process.

15. The base station according to claim 14, wherein the formula is:

an initial UE-specific narrowband frequency resource index of the user equipment=(an index value of a preamble sequence sent by the user equipment) mod N, wherein N is the total number of narrowband frequency resources in a carrier or the total number of narrowband frequency resources in multiple carriers.

16. The base station according to claim 13, wherein the correspondence is embodied by a formula or by a correspondence table, and the formula comprises a modulo operation on a function inclusive of the index of the preamble sequence, or, the index of the preamble sequence and common information of a cell.

17. The base station according to claim 13, wherein the processor configured to send or receive the control information and/or the data for the UE on the narrowband resource is further configured to perform at least one of:

sending, by the base station, the contention resolution message on the narrowband resource; and

sending or receiving, by the base station, dedicated information on the narrowband resource.