Methods and devices for transmitting data

• US 9,474,065 B2
• Filed: 08/17/2015
• Issued: 10/18/2016
• Est. Priority Date: 05/31/2011
• 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: Wang, Li, Zhen, Bin, Zhu, Song
• Primary Examiner(s): JAIN, RAJ K
• Application Number:
  US14/828,196
• Publication Number:
  US 20150358951A1
• Time in Patent Office: 428 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 5/0062 Avoidance of ingress interference, e.g. ham radio channels
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/53 based on regulatory allocation policies

Abstract

The present disclosure provides a system for transmitting data. The system comprises: a base station and a first user equipment, the first user equipment receives downlink data sent from a base station through downlink resources of a special subframe; acquires a position of uplink resources corresponding to the first user equipment in guard period resources of the special subframe, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the special subframe is staggered from a position of downlink resources corresponding to a second user equipment in the special subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; and sends uplink data to the base station through the uplink resources corresponding to the first user equipment in the guard period resources of the special subframe.

Claims

1. A system for transmitting data, comprising:

a first user equipment (UE) and a base station, wherein, the first user equipment is configured to receive downlink data from the base station in downlink resources of a subframe;

wherein, the first user equipment is configured to acquire a position of uplink resources corresponding to the first user equipment in guard period resources of the subframe, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of the downlink resources corresponding to a second user equipment in the subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; and

wherein, the first user equipment is configured to send uplink data to the base station through the uplink resources corresponding to the first user equipment in the guard period resources of the subframe; and

the base station is configured to send the downlink data through the downlink resources of the subframe to the first user equipment, and to receive the uplink data from the first user equipment through the uplink resources corresponding to the first user equipment in the guard period resources of the subframe.

2. The system according to claim 1, wherein,

the base station is further configured to obtain the round-trip time of the first user equipment and the round-trip time of the second user equipment;

and configured to determine, according to the round-trip time of the first user equipment and the round-trip time of the second user equipment, the position of uplink resources corresponding to the first user equipment in guard period resources of the subframe; and

the base station is further configured to send, to the first user equipment, a notification of the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe.

3. The system according to claim 1, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the downlink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is after a time of receiving, by the second user equipment, downlink data sent through the subframe; and

a frequency of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the downlink resources corresponding to the second user equipment in the subframe.

4. The system according to claim 1, wherein the base station is further configured to obtain a location of resources which are in the guard period resources of the subframe and interfered by downlink data of a neighboring base station, and to shield the interfered guard period resources or jointly schedule the interfered guard period resources with the neighboring base station.

5. The system according to claim 4, wherein,

if the base station is configured to shield the interfered guard period resources, the base station is further configured to send, to a user equipment within an own cell, a notification for indicating the shielded guard period resources.

6. The system according to claim 4, wherein the base station is further configured to increase a sending power of uplink data of a user equipment which transmits the uplink data using the interfered guard period resources or decrease a sending power of the interfering downlink data.

7. The system according to claim 4, wherein the base station is further configured to jointly schedule a first frequency of the interfered guard period resources and a second frequency occupied by the interfering downlink data with the neighboring base station, so that the first frequency is orthogonal to the second frequency.

8. A system for transmitting data, comprising:

a base station and a first user equipment;

the base station is configured to obtain a round-trip time of the first user equipment and a round-trip time of a second user equipment, wherein the round-trip time of the second user equipment is greater than the round-trip time of the first user equipment; and

the base station is configured to determine, according to the round-trip time of the first user equipment and the round-trip time of the second user equipment, a position of downlink resources corresponding to the first user equipment in guard period resources of the subframe, wherein the position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of uplink resources corresponding to the second user equipment in the subframe; and

the base station is configured to send, to the first user equipment, downlink data through the downlink resources corresponding to the first user equipment in the guard period resources of the subframe; and

the first user equipment is configured to send uplink data to the base station through uplink resources corresponding to the first user equipment in the subframe, and receive the downlink data sent from the base station through the downlink resources corresponding to the first user equipment in the guard period resources of the subframe.

9. The system according to claim 8, wherein the position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the uplink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the second user equipment of the subframe is after a time of receiving, by the first user equipment, downlink data sent through the guard period resources of the subframe; and

a frequency of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the uplink resources corresponding to the second user equipment in the subframe.

10. The system according to claim 8, wherein the base station is further configured to obtain a location of resources which are in the guard period resources of the subframe and interfere with uplink data of a neighboring base station, and shield the interfering guard period resources or jointly schedule an interference with the neighboring base station.

11. The system according to claim 10, wherein if the base station is configured to shield the interfered guard period resources, the base station is further configured to send, to a user equipment within an own cell, a notification for indicating a location of the shielded guard period resources.

12. The system according to claim 10, wherein the base station is further configured to decrease a sending power of downlink data of a user equipment which transmits the downlink data using the interfering guard period resources or increase a sending power of the interfered uplink data.

13. The system according to claim 10, wherein the base station is further configured to jointly schedule a first frequency of the interfering guard period resources and a second frequency occupied by the interfered uplink data with the neighboring base station, so that the first frequency is orthogonal to the second frequency.

14. A non-transitory machine-readable storage medium having stored thereon a computer program comprising at least one code section for distributing data, the at least one code section being executable by a first user equipment for causing the first user equipment to perform acts of:

receiving downlink data sent from a base station through downlink resources of a subframe;

acquiring a position of uplink resources corresponding to the first user equipment in guard period resources of the subframe, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of downlink resources corresponding to a second user equipment in the subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; and

sending uplink data to the base station through the uplink resources corresponding to the first user equipment in the guard period resources of the subframe.

15. The non-transitory machine-readable storage medium of claim 14, wherein the at least one code section being executable by the first user equipment further causes the first user equipment to perform further acts of:

receiving a notification of the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe, sent from the base station;

acquiring the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe, according to the notification;

acquiring the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe, according to the round-trip time of the first user equipment and the round-trip time of the second user equipment; and

acquiring the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe, according to a preset value.

16. The non-transitory machine-readable storage medium of claim 14, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the downlink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is after a time of receiving, by the second user equipment, downlink data sent through the subframe; and

a frequency of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the downlink resources corresponding to the second user equipment in the subframe.

17. The non-transitory machine-readable storage medium of claim 14, wherein,

the guard period resources are divided into a first half of the guard period resources and a second half of the guard period resources in terms of time, the uplink resources corresponding to the first user equipment in the guard period resources of the subframe are in the second half of the guard period resources in terms of time, a duration of the second half of the guard period resources is less than or equal to half of a duration of the guard period resources, or is less than or equal to a difference between the duration of the guard period resources and half a duration of a maximum round-trip time corresponding to a set of user equipments, and the set of the user equipments comprise the first user equipment and the second user equipment.

18. A non-transitory machine-readable storage medium having stored thereon a computer program comprising at least one code section for distributing data, the at least one code section being executable by a base station for causing the base station to perform acts of:

sending downlink data through downlink resources of a subframe to a first user equipment; and

receiving uplink data sent from the first user equipment through uplink resources corresponding to the first user equipment in guard period resources of the subframe, wherein a position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of downlink resources corresponding to a second user equipment in the subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment.

19. The non-transitory machine-readable storage medium of claim 18, wherein the at least one code section being executable by the base station further causes the base station to perform further acts of:

obtaining the round-trip time of the first user equipment and the round-trip time of the second user equipment;

determining, according to the round-trip time of the first user equipment and the round-trip time of the second user equipment, the position of the uplink resources corresponding to the first user equipment in guard period resources of the subframe; and

sending a notification of the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe to the first user equipment.

20. The non-transitory machine-readable storage medium of claim 18, wherein the position of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the downlink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is after a time of receiving, by the second user equipment, downlink data sent through the subframe; and

a frequency of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the downlink resources corresponding to the second user equipment in the subframe.

21. The non-transitory machine-readable storage medium of claim 18, wherein the at least one code section being executable by the base station further causes the base station to perform further acts of:

obtaining a location of resources which are in the guard period resources of the subframe and interfered by downlink data of a neighboring base station; and

shielding the interfered guard period resources or jointly scheduling an interference with the neighboring base station.

22. The non-transitory machine-readable storage medium of claim 21, wherein the at least one code section being executable by the base station further causes the base station to perform a further act of:

sending a notification for indicating a location of the shielded guard period resources to a user equipment within an own cell.

23. The non-transitory machine-readable storage medium of claim 21, wherein the at least one code section being executable by the base station further causes the base station to perform further acts of:

increasing a sending power of uplink data of a user equipment which transmits the uplink data using the interfered guard period resources or decreasing a sending power of the interfering downlink data; and

jointly scheduling a first frequency of the interfered guard period resources and a second frequency occupied by the interfering downlink data with the neighboring base station, so that the first frequency is orthogonal to the second frequency.

24. A non-transitory machine-readable storage medium having stored thereon a computer program comprising at least one code section for distributing data, the at least one code section being executable by a base station for causing the base station to perform acts of:

obtaining a round-trip time of a first user equipment and a round-trip time of a second user equipment, wherein the round-trip time of the second user equipment is greater than the round-trip time of the first user equipment;

determining, according to the round-trip time of the first user equipment and the round-trip time of the second user equipment, a position of downlink resources corresponding to the first user equipment in guard period resources of a subframe, so that the position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of uplink resources corresponding to the second user equipment in the subframe; and

sending, to the first user equipment, downlink data through the downlink resources corresponding to the first user equipment in the guard period resources of the subframe.

25. The non-transitory machine-readable storage medium of claim 24, wherein the position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the uplink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the second user equipment of the subframe is after a time of receiving, by the first user equipment, downlink data sent through the guard period resources of the subframe; and

a frequency of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the uplink resources corresponding to the second user equipment in the subframe.

26. The non-transitory machine-readable storage medium of claim 24, wherein the at least one code section being executable by the base station further causes the base station to perform further acts of:

obtaining a location of resources which are in the guard period resources of the subframe and interfere in uplink data of a neighboring base station; and

shielding the interfering guard period resources or jointly scheduling an interference with the neighboring base station.

27. The non-transitory machine-readable storage medium of claim 26, wherein the at least one code section being executable by the base station further causes the base station to perform a further act of:

sending, to a user equipment within an own cell, a notification for indicating a location of the shielded guard period resources.

28. The non-transitory machine-readable storage medium of claim 26, wherein the at least one code section being executable by the base station further causes the base station to perform further acts of:

decreasing a sending power of downlink data of a user equipment which transmits the downlink data using the interfering guard period resources and/or increasing a sending power of the interfered uplink data; and

jointly scheduling a first frequency of the interfering guard period resources and a second frequency occupied by the interfered uplink data with the neighboring base station, so that the first frequency is orthogonal to the second frequency.

29. A non-transitory machine-readable storage medium having stored thereon a computer program comprising at least one code section for distributing data, the at least one code section being executable by a first user equipment for causing the first user equipment to perform acts of:

receiving downlink data sent from a base station through downlink resources corresponding to the first user equipment in guard period resources of a subframe, wherein a position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from a position of uplink resources corresponding to a second user equipment in the subframe, and a round-trip time of the second user equipment is greater than a round-trip time of the first user equipment; and

sending uplink data to the base station through uplink resources corresponding to the first user equipment in the subframe.

30. The non-transitory machine-readable storage medium of claim 29, wherein the position of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is staggered from the position of the uplink resources corresponding to the second user equipment in the subframe comprises one of:

a time of the uplink resources corresponding to the first user equipment in the guard period resources of the subframe is after a time of receiving, by the second user equipment, downlink data sent through the subframe; and

a frequency of the downlink resources corresponding to the first user equipment in the guard period resources of the subframe is orthogonal to a frequency of the uplink resources corresponding to the second user equipment in the subframe.