Methods and devices for transmitting data

• US 9,148,271 B2
• Filed: 11/14/2013
• Issued: 09/29/2015
• Est. Priority Date: 05/31/2011
• Status: Active Grant

• Current Assignee: Honor Device Company Limited
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wang, Li, Zhen, Bin, Zhu, Song
• Primary Examiner(s): Jain, Raj
• Application Number:
  US14/079,863
• Publication Number:
  US 20140071921A1
• Time in Patent Office: 684 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 method and device for transmitting data. The method comprises: a first user equipment receives downlink data sent from a base station through downlink resources of a special subframe; the first user equipment 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 the first user equipment 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 method for transmitting data, comprising:

receiving, by a first user equipment, downlink data sent from a base station through downlink resources of a subframe;

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

2. The method for transmitting the data according to claim 1, further comprising one of the following steps:

Step A;

receiving, by 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, sent from the base station; and

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

Step B;

acquiring, by the first user equipment, 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

Step C;

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.

3. The method for transmitting the data 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 method for transmitting the data according to claim 1, 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.

5. A method for transmitting data, comprising:

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.

6. The method for transmitting the data according to claim 5, further comprising:

obtaining the round-trip time of the first user equipment and the round-trip time of the 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, the position of the 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 the position of the downlink resources corresponding to the second user equipment in 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.

7. The method for transmitting the data according to claim 5, 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.

8. The method for transmitting the data according to claim 5, further comprising:

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.

9. The method for transmitting the data according to claim 8, after shielding the interfered guard period resources, the method further comprises:

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

10. The method for transmitting the data according to claim 8, further comprising one of the following steps:

Step D;

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

Step E;

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.

11. A method for transmitting data, comprising:

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.

12. The method for transmitting the data according to claim 11, 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.

13. The method for transmitting the data according to claim 11, further comprising:

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.

14. The method for transmitting the data according to claim 13, after shielding the interfering guard period resources, the method further comprises:

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

15. The method for transmitting the data according to claim 13, wherein the jointly scheduling the interference with the neighboring base station comprises one of the following steps:

Step I;

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

Step II;

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.

16. A method for transmitting data, comprising:

receiving, by a first user equipment, 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, by the first user equipment, uplink data to the base station through uplink resources corresponding to the first user equipment in the subframe.

17. The method for transmitting the data according to claim 16, 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.

18. A user equipment, comprising:

a receiver, configured to receive downlink data sent from a base station through downlink resources of a subframe;

a processor, configured to acquire a position of uplink resources corresponding to the user equipment in guard period resources of the subframe, wherein the position of the uplink resources corresponding to the 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 user equipment; and

a transmitter, configured to send uplink data to the base station through the uplink resources corresponding to the user equipment in the guard period resources of the subframe.

19. The user equipment according to claim 18, wherein,

the receiver is further configured to receive a notification of the position of the uplink resources corresponding to the user equipment in the guard period resources of the subframe, sent from the base station;

and

the processor is configured to acquire the position of the uplink resources corresponding to the user equipment in the guard period resources of the subframe, according to the notification.

20. The user equipment according to claim 18, wherein, the processor is configured to acquire the position of the uplink resources corresponding to the user equipment in the guard period resources of the subframe, according to the round-trip time of the user equipment and the round-trip time of the second user equipment.

21. The user equipment according to claim 18, wherein,

the processor is configured to acquire the position of the uplink resources corresponding to the user equipment in the guard period resources of the subframe, according to a preset value.

22. The user equipment according to claim 18, wherein,

the position of the uplink resources corresponding to the 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 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 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.

23. The user equipment according to claim 18, 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 comprises the first user equipment and the second user equipment.

24. A base station, comprising:

a transmitter, configured to send, to a first user equipment, downlink data through downlink resources of a subframe; and

a receiver, configured to receive 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.

25. The base station according to claim 24, further comprising:

a processor, configured to obtain the round-trip time of the first user equipment and the round-trip time of the 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

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, 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;

wherein the transmitter 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.

26. The base station according to claim 24, 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.

27. The base station according to claim 24, further comprising:

a processor, 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 scheduling the interfered guard period resources with the neighboring base station.

28. The base station according to claim 27, wherein,

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

29. The base station according to claim 27, wherein the processor 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.

30. The base station according to claim 27, wherein the processor 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.

31. A base station, comprising:

a processor, configured to obtain 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; 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, a position of downlink resources corresponding to the first user equipment in guard period resources of the 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

a transmitter, 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.

32. The base station according to claim 31, 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.

33. The base station according to claim 31, wherein, the processor 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.

34. The base station according to claim 33, wherein if the processor is configured to shield the interfered guard period resources, the transmitter 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.

35. The base station according to claim 33, wherein,

the processor 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.

36. The base station according to claim 33, wherein,

the processor 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.

37. A user equipment, comprising:

a receiver, configured to receive downlink data sent from a base station through downlink resources corresponding to the user equipment in guard period resources of a subframe, wherein a position of the downlink resources corresponding to the 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 user equipment; and

a transmitter, configured to send uplink data to the base station through uplink resources corresponding to the user equipment in the subframe.

38. The user equipment according to claim 37, wherein the position of the downlink resources corresponding to the 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 comprising 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 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.