SIGNAL SENDING METHOD AND DEVICE

• US 20160021602A1
• Filed: 09/28/2015
• Published: 01/21/2016
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Honor Device Company Limited
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: LI, Chao
• Granted Patent: US 10,798,643 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0803 Configuration setting
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

The present invention provides a signal sending method and device. The method includes: sending a first discovery reference signal to first user equipment by using a first transmit power and a first transmit period, where the first discovery reference signal is used by the first user equipment for signal quality measurement; sending a second discovery reference signal to second user equipment by using a second transmit power and a second transmit period, where the second discovery reference signal is used by the second user equipment for signal quality measurement; and receiving a first signal measurement result of the first user equipment for the first discovery reference signal, and receiving a second signal measurement result of the second user equipment for the second discovery reference signal.

Claims

1. A signal sending method, comprising:

sending a first discovery reference signal DsRS 1 to first user equipment UE by using a first transmit power and a first transmit period, wherein the first discovery reference signal is used by the first UE for signal quality measurement;

sending a second discovery reference signal DsRS 2 to second user equipment UE by using a second transmit power and a second transmit period, wherein the second discovery reference signal is used by the second UE for signal quality measurement; and

receiving a first signal measurement result of the first UE for the first discovery reference signal, and receiving a second signal measurement result of the second UE for the second discovery reference signal.

2. The method according to claim 1, wherein the receiving a first signal measurement result of the first UE for the first discovery reference signal, and receiving a second signal measurement result of the second UE for the second discovery reference signal comprises:

receiving, by a first transmit site, the first signal measurement result of the first UE for the first discovery reference signal, receiving the second signal measurement result of the second UE for the second discovery reference signal, and determining, according to the first signal measurement result and the second signal measurement result, whether to switch an operation mode, wherein

the first transmit site is a site that sends the DsRS 1 and the DsRS 2.

3. The method according to claim 1, before the receiving a first signal measurement result of the first UE for the first discovery reference signal, and receiving a second signal measurement result of the second UE for the second discovery reference signal, further comprising:

sending, by the first transmit site to a second transmit site, configuration information 1 corresponding to the DsRS 1, and configuration information 2 corresponding to the DsRS 2; and

correspondingly, sending, by the second transmit site, first configuration information to the first UE according to the configuration information 1, and sending second configuration information to the second UE according to the configuration information 2, so that the first UE acquires the first signal measurement result of the first UE according to the first configuration information and the DsRS 1, and the second UE acquires the second signal measurement result of the second UE according to the second configuration information and the DsRS 2, wherein

the first transmit site is the site that sends the DsRS 1 and the DsRS 2.

4. The method according to claim 3, wherein the receiving, by a first transmit site, the first signal measurement result of the first UE for the first discovery reference signal, and receiving the second signal measurement result of the second UE for the second discovery reference signal comprises:

receiving, by the first transmit site, the first signal measurement result of the first UE and the second signal measurement result of the second UE that are sent by the second transmit site, wherein

the second transmit site is a site that directly receives the first signal measurement result acquired by the first UE and receives the second signal measurement result acquired by the second UE.

5. The method according to claim 1, wherein the receiving a first signal measurement result of the first UE for the first discovery reference signal, and receiving a second signal measurement result of the second UE for the second discovery reference signal comprises:

receiving, by a control device from a second transmit site, the first signal measurement result of the first UE for the first discovery reference signal, and the second signal measurement result of the second UE for the second discovery reference signal; and

determining, by the control device according to the first signal measurement result and the second signal measurement result, whether to switch an operation mode of a first transmit site, wherein

the first transmit site is a site that sends the DsRS 1 and the DsRS 2, and the second transmit site is a site that directly receives the first signal measurement result acquired by the first UE, and receives the second signal measurement result acquired by the second UE.

6. The method according to claim 5, before the sending a DsRS 1 to first UE by using a first transmit power and a first transmit period, further comprising:

separately sending, by the control device to the first transmit site and the second transmit site, configuration information 1 corresponding to the DsRS 1, and separately sending, to the first transmit site and the second transmit site, configuration information 2 corresponding to the DsRS 2; and

correspondingly, sending, by the second transmit site, first configuration information to the first UE according to the configuration information 1, and sending second configuration information to the second UE according to the configuration information 2, so that the first UE acquires the first signal measurement result according to the first configuration information and the DsRS 1, and the second UE acquires the second signal measurement result according to the second configuration information and the DsRS 2;

the sending a DsRS 1 to first UE by using a first transmit power and a first transmit period comprises;

sending, by the first transmit site according to the configuration information 1, the DsRS 1 to the first UE by using the first transmit power and the first transmit period; and

the sending a DsRS 2 to second UE by using a second transmit power and a second transmit period comprises;

sending, by the first transmit site according to the configuration information 2, the DsRS 2 to the second UE by using the second transmit power and the second transmit period.

7. The method according to claim 1, wherein the receiving a first signal measurement result of the first UE for the first discovery reference signal, and receiving a second signal measurement result of the second UE for the second discovery reference signal comprises:

receiving, by a second transmit site, the first signal measurement result of the first UE for the first discovery reference signal, and receiving the second signal measurement result of the second UE for the second discovery reference signal; and

determining, by the second transmit site according to the first signal measurement result and the second signal measurement result, whether to switch an operation mode of a first transmit site, wherein

the first transmit site is a site that sends the DsRS 1 and the DsRS 2.

8. The method according to claim 1, wherein the DsRS 1 comprises one or more of the following:

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a cell-specific reference signal CRS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CRS;

or,

the DsRS 1 comprises one or more of the following;

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a channel state information-reference signal CSI-RS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CSI-RS.

9. The method according to claim 1, wherein if the first UE is earlier-version UE, and the second UE is new-version UE,

the first transmit period is less than or equal to the second transmit period,

and/or

the first transmit power is less than or equal to the second transmit power.

10. The method according to claim 9, wherein the first transmit period is 5 ms or 10 ms;

and

the second transmit period is 100 ms, 200 ms, 400 ms, 800 ms, or 1000 ms.

11. The method according to claim 1, wherein the first signal measurement result of the first UE comprises one or more of the following:

an identifier of the first UE;

a measurement value of a reference signal received power RSRP acquired by the first UE corresponding to the identifier of the first UE;

a measurement value of reference signal received quality RSRQ acquired by the first UE corresponding to the identifier of the first UE; and

a measurement value of a received signal strength indicator RSSI acquired by the first UE corresponding to the identifier of the first UE; and

the second signal measurement result of the second UE comprises one or more of the following;

an identifier of the second UE;

a measurement value of an RSRP acquired by the second UE corresponding to the identifier of the second UE;

a measurement value of RSRQ acquired by the second UE corresponding to the identifier of the second UE; and

a measurement value of an RSSI acquired by the second UE corresponding to the identifier of the second UE.

12. A signal sending device, comprising:

a sending unit, configured to send a first discovery reference signal DsRS 1 to first user equipment UE by using a first transmit power and a first transmit period, wherein the first discovery reference signal is used by the first UE for signal quality measurement; and

send a second discovery reference signal DsRS 2 to second user equipment UE by using a second transmit power and a second transmit period, wherein the second discovery reference signal is used by the second UE for signal quality measurement; and

a receiving unit, configured to receive a first signal measurement result of the first UE for the first discovery reference signal, receive a second signal measurement result of the second UE for the second discovery reference signal, and determine, according to the first signal measurement result and the second signal measurement result, whether to switch an operation mode.

13. The device according to claim 12, wherein the sending unit is further configured to:

send, to a second transmit site, configuration information 1 corresponding to the DsRS 1 and configuration information 2 corresponding to the DsRS 2, so that the second transmit site sends first configuration information to the first UE according to the configuration information 1, and sends second configuration information to the second UE according to the configuration information 2, and further, the first UE acquires the first signal measurement result according to the first configuration information and the DsRS 1, and the second UE acquires the second signal measurement result according to the second configuration information and the DsRS 2.

14. The device according to claim 13, wherein the receiving unit is specifically configured to receive the first signal measurement result of the first UE and the second signal measurement result of the second UE that are sent by the second transmit site, wherein

the second transmit site is a site that directly receives the first signal measurement result acquired by the first UE and receives the second signal measurement result acquired by the second UE.

15. The device according to claim 12, wherein the DsRS 1 comprises one or more of the following:

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a cell-specific reference signal CRS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CRS;

or,

the DsRS 1 comprises one or more of the following;

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a channel state information-reference signal CSI-RS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CSI-RS.

16. The device according to claim 12, wherein if the first UE is earlier-version UE, and the second UE is new-version UE,

the first transmit period is less than or equal to the second transmit period,

and/or

the first transmit power is less than or equal to the second transmit power.

17. The device according to claim 16, wherein the first transmit period is 5 ms or 10 ms;

and

the second transmit period is 100 ms, 200 ms, 400 ms, 800 ms, or 1000 ms.

18. The device according to claim 12, wherein the first signal measurement result of the first UE comprises one or more of the following:

an identifier of the first UE;

a measurement value of a reference signal received power RSRP acquired by the first UE corresponding to the identifier of the first UE;

a measurement value of reference signal received quality RSRQ acquired by the first UE corresponding to the identifier of the first UE; and

a measurement value of a received signal strength indicator RSSI acquired by the first UE corresponding to the identifier of the first UE; and

the second signal measurement result of the second UE comprises one or more of the following;

an identifier of the second UE;

a measurement value of an RSRP acquired by the second UE corresponding to the identifier of the second UE;

a measurement value of RSRQ acquired by the second UE corresponding to the identifier of the second UE; and

a measurement value of an RSSI acquired by the second UE corresponding to the identifier of the second UE.

19. A communications system, comprising a first transmit site, a second transmit site, and a control device, wherein

the first transmit site sends a first discovery reference signal DsRS 1 to first user equipment UE by using a first transmit power and a first transmit period, wherein the first discovery reference signal is used by the first UE for signal quality measurement;

and sends a second discovery reference signal DsRS 2 to second user equipment UE by using a second transmit power and a second transmit period, wherein the second discovery reference signal is used by the second UE for signal quality measurement;

the control device receives, from the second transmit site, a first signal measurement result of the first UE for the first discovery reference signal, and a second signal measurement result of the second UE for the second discovery reference signal; and

the control device determines, according to the first signal measurement result and the second signal measurement result, whether to switch an operation mode of the first transmit site, wherein

the second transmit site is a site that directly receives the first signal measurement result acquired by the first UE and receives the second signal measurement result acquired by the second UE.

20. The communications system according to claim 19, wherein the control device is further configured to:

before the first transmit site sends the DsRS 1 to the first UE by using the first transmit power and the first transmit period, separately send, to the first transmit site and the second transmit site, configuration information 1 corresponding to the DsRS 1, and separately send, to the first transmit site and the second transmit site, configuration information 2 corresponding to the DsRS 2; and

the second transmit site is further configured to send first configuration information to the first UE according to the configuration information 1, and send second configuration information to the second UE according to the configuration information 2, so that the first UE acquires the first signal measurement result according to the first configuration information and the DsRS 1, and the second UE acquires the second signal measurement result according to the second configuration information and the DsRS 2, wherein

correspondingly, that the first transmit site sends the DsRS 1 to the first UE by using the first transmit power and the first transmit period comprises;

sending, by the first transmit site according to the configuration information 1, the DsRS 1 to the first UE by using the first transmit power and the first transmit period; and

that the first transmit site sends the DsRS 2 to the second UE by using the second transmit power and the second transmit period comprises;

sending, by the first transmit site according to the configuration information 2, the DsRS 2 to the second UE by using the second transmit power and the second transmit period.

21. The communications system according to claim 19, wherein the DsRS 1 comprises one or more of the following:

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a cell-specific reference signal CRS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CRS;

or,

the DsRS 1 comprises one or more of the following;

a primary synchronization signal PSS, a secondary synchronization signal SSS, and a channel state information-reference signal CSI-RS, and

the DsRS 2 comprises one or more of the following;

a PSS, an SSS, and a CSI-RS.

22. The communications system according to claim 19, wherein if the first UE is earlier-version UE, and the second UE is new-version UE,

the first transmit period is less than or equal to the second transmit period,

and/or

the first transmit power is less than or equal to the second transmit power.

23. The communications system according to claim 22, wherein the first transmit period is 5 ms or 10 ms;

and

the second transmit period is 100 ms, 200 ms, 400 ms, 800 ms, or 1000 ms.

24. The communications system according to claim 19, wherein the first signal measurement result of the first UE comprises one or more of the following:

an identifier of the first UE;

a measurement value of a reference signal received power RSRP acquired by the first UE corresponding to the identifier of the first UE;

a measurement value of reference signal received quality RSRQ acquired by the first UE corresponding to the identifier of the first UE; and

a measurement value of a received signal strength indicator RSSI acquired by the first UE corresponding to the identifier of the first UE; and

the second signal measurement result of the second UE comprises one or more of the following;

an identifier of the second UE;

a measurement value of an RSRP acquired by the second UE corresponding to the identifier of the second UE;

a measurement value of RSRQ acquired by the second UE corresponding to the identifier of the second UE; and

a measurement value of an RSSI acquired by the second UE corresponding to the identifier of the second UE.