Resource determining method, base station, and user equipment

• US 10,390,370 B2
• Filed: 06/14/2017
• Issued: 08/20/2019
• 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): Javaid, Jamal
• Application Number:
  US15/623,222
• Publication Number:
  US 20170290065A1
• Time in Patent Office: 797 Days
• 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, a base 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. An apparatus, comprising:

a processor, coupled with a storage medium configured to store instructions,

wherein the processor is configured to execute the instructions, and when the instructions are executed by the processor, the instructions cause the apparatus to;

determine a narrowband resource available to a machine type communication (MTC) terminal according to a correspondence between the narrowband resource and an index of a preamble sequence used by the apparatus in a random access process, wherein the apparatus is the MTC terminal or a chip for the MTC terminal and the narrowband resource comprises a narrowband frequency resource, and

receive downlink control information for the MTC terminal carried on the determined narrowband resource.

2. The apparatus according to claim 1, wherein the correspondence comprises a correspondence between the narrowband resource and a result of a modulo operation on the index of the preamble sequence in the random access process.

3. The apparatus according to claim 2, wherein the correspondence satisfies a formula, and

the formula is:

an initial terminal-specific narrowband frequency resource index of the MTC terminal=(the index of the preamble sequence used by the MTC terminal) mod N, wherein N is a total number of narrowband frequency resources in a carrier or a total number of narrowband frequency resources in multiple carriers.

4. The apparatus according to claim 1, wherein to determine the narrowband resource, when executed by the processor, the instructions cause the apparatus 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[S₁+(k−

1)×

Δ

]mod N,

wherein S₁=f(x,y)mod N or S₁=floor[f(x,y)/N],

wherein S_k represents an index of a k^th narrowband frequency resource, S₁ represents an index of the narrowband frequency resource, f(x, y) represents a function inclusive of x and/or y, x represents the MTC terminal information, y represents 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.

5. The apparatus according to claim 1, wherein:

the correspondence comprises;

a correspondence between the narrowband resource and a result of a modulo operation on a function inclusive of the index of the preamble sequence or a correspondence between the narrowband resource and a result of a modulo operation on a function inclusive of the index of the preamble sequence and common information of a cell.

6. The apparatus according to claim 1, wherein the downlink control information comprises control information for a contention resolution message.

7. An apparatus, comprising:

a first circuit, configured to;

determine a narrowband resource available to a machine type communication (MTC) terminal according to a correspondence between the narrowband resource and an index of a preamble sequence used by the apparatus in a random access process, wherein the apparatus is the MTC terminal or a chip for the MTC terminal and the narrowband resource comprises a narrowband frequency resource; and

a second circuit, configured to receive downlink control information for the MTC terminal carried on the narrowband resource.

8. The apparatus according to claim 7, wherein the correspondence comprises a correspondence between the narrow band resource and a result of a modulo operation on the index of the preamble sequence in the random access process.

9. The apparatus according to claim 8, wherein the correspondence satisfies a formula, and

the formula is:

an initial terminal-specific narrowband frequency resource index of the MTC terminal=(the index of the preamble sequence used by the MTC terminal) mod N, wherein N is a total number of narrowband frequency resources in a carrier or a total number of narrowband frequency resources in multiple carriers.

10. The apparatus according to claim 7, wherein to determine the narrowband resource, the first circuit is configured 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=[S₁+(k−

1)×

Δ

]mod N,

wherein S₁=f(x,y)mod N or S₁=floor[f(x,y)/N],

wherein S_k represents an index of a k^th narrowband frequency resource, S₁ represents an index of the narrowband frequency resource, f(x, y) represents a function inclusive of x and/or y, x represents the MTC terminal information, y represents 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.

11. The apparatus according to claim 7, wherein:

the correspondence comprises;

a correspondence between the narrowband resource and a result of a modulo operation on a function inclusive of the index of the preamble sequence or a correspondence between the narrowband resource and a result of a modulo operation on a function inclusive of the index of the preamble sequence and common information of a cell.

12. The apparatus according to claim 7, wherein the downlink control information comprises control information for a contention resolution message.

13. A non-transitory storage medium, storing program instructions, wherein when the program instructions are executed by a processor, cause the processor to perform a method that comprises:

determining a narrowband resource available to a machine type communication (MTC) terminal according to a correspondence between the narrowband resource and an index of a preamble sequence used by the MTC terminal in a random access process, wherein the narrowband resource comprises a narrowband frequency resource; and

receiving downlink control information for the MTC terminal carried on the narrowband resource.

14. The storage medium according to claim 13, wherein the correspondence comprises a correspondence between the narrowband resource and a result of a modulo operation on the index of the preamble sequence in the random access process.

15. The storage medium according to claim 14, wherein the correspondence satisfies a formula and

the formula is:

an initial terminal-specific narrowband frequency resource index of the MTC terminal=(the index of the preamble sequence used by the MTC terminal) mod N, wherein N is a total number of narrowband frequency resources in a carrier or a total number of narrowband frequency resources in multiple carriers.

16. The storage medium according to claim 13, wherein to determine the narrowband resource, the program, when executed by the processor, causes the processor 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=[S₁+(k−

1)×

Δ

]mod N,

wherein S₁=f(x,y)mod N or S₁=floor[f(x,y)/N],

wherein S_k represents an index of a k^th narrowband frequency resource, S₁ represents an index of the narrowband frequency resource, f(x, y) represents a function inclusive of x and/or y, x represents the MTC terminal information, y represents 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.

17. The storage medium according to claim 13, wherein:

the correspondence comprises;

a correspondence between the narrowband resource and a result of a modulo operation on a function inclusive of the index of the preamble sequence or a correspondence between the narrowband resource and a result of the index of the preamble sequence and common information of a cell.

18. The storage medium according to claim 13, wherein the downlink control information comprises control information for a contention resolution message.