METHOD AND APPARATUS FOR SELECTING A POSITIONING SCHEME, METHOD AND APPARATUS FOR CONTROLLING A POSITIONING SCHEME TO BE SELECTED

• US 20170006426A1
• Filed: 03/12/2015
• Published: 01/05/2017
• Est. Priority Date: 03/13/2014
• Status: Active Grant

• Current Assignee: Datang Mobile Communications Equipment Company Limited (China Information Communication Technology Group Co. Ltd.)
• Original Assignee: China Academy of Telecom Technology (China Information Communication Technology Group Co. Ltd.)
• Inventors: QUAN, Haiyang, FU, Jing, LIANG, Jing
• Granted Patent: US 9,942,714 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 5/0236 Assistance data, e.g. base station almanac
• CPC Class Codes: G01S 5/0263 by combining or switching between positions derived from two or more separate positioning systems
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 4/026 using orientation information, e.g. compass
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The present invention provides a method and device for transmission on unlicensed spectrum in a UE and a base station. In view of the problem of DFS constraints and PHICH resource waste that is caused by communication of an uplink synchronous HARQ on unlicensed spectrum, in the present invention, logical information is configured so that PUSCHs transmitted through different sub-frames on different physical carriers form one logical carrier, and PHICH resources are reserved for the logical carrier. As an embodiment, downlink signaling is sent in a sub-frame for sending a MUCH so as to indicate transmission bandwidth for data retransmission. The solution provided in the present invention saves PHICH resources and eliminates the constraints on the DFS by the synchronous HARQ. Besides, the present invention reuses the CA scheme in the existing LTE as much as possible, and has high compatibility.

Claims

1. A method for controlling a positioning scheme to be selected, the method comprising:

determining, by a location server, assistance data to instruct a User Equipment (UE) to select a positioning scheme from a location service request; and

transmitting, by the location server, the assistance data to the UE.

2. The method according to claim 1, wherein the assistance data comprises a priority and/or a positioning condition corresponding to respective one of positioning schemes currently supported by the UE;

wherein the priority is a priority at which the UE is instructed to select the respective positioning scheme, and the positioning condition is a respective positioning condition to be satisfied by the positioning scheme which the UE is instructed to select at the priority, wherein if the positioning condition is satisfied, then it will be determined that the positioning scheme is selected;

otherwise, another positioning scheme will be further selected at the priority thereof.

3. The method according to claim 1, wherein determining, by the location server, from the location service request the assistance data to instruct the User Equipment (UE) to select a positioning scheme comprises:

determining, by the location server, the assistance data to instruct the UE to select one of the positioning schemes, according to a Quality of Service (QoS) parameter of the location service carried in the location service request, a current serving cell or positional information of the UE, and positioning capabilities of the UE and the network side.

4. The method according to claim 1, wherein the method further comprises:

transmitting, by the location server, the assistance data to the UE, according to an updated serving cell of the UE, and a previous result of positioning the UE upon reception of a location update message.

5. A method for selecting a positioning scheme, the method comprising:

receiving, by a User Equipment (UE), assistance data transmitted by a location server to instruct the UE to select a positioning scheme; and

selecting, by the UE, a positioning scheme according to the assistance data.

6. The method according to claim 5, wherein the assistance data comprises a priority and/or a positioning condition corresponding to respective one of positioning schemes currently supported by the UE;

wherein the priority is a priority at which the UE is instructed to select the respective positioning scheme, and the positioning condition is a respective positioning condition to be satisfied by the positioning scheme which the UE is instructed to select at the priority, wherein if the positioning condition is satisfied, then it will be determined that the positioning scheme is selected;

otherwise, another positioning scheme will be further selected at the priority thereof.

7. The method according to claim 6, wherein if the assistance data comprises the priority and the positioning condition corresponding to respective one of the positioning schemes currently supported by the UE, then selecting, by the UE, one of the positioning schemes according to the assistance data comprises:

selecting, by the UE, one of the positioning schemes in an order of descending priorities from high to low, and determining whether the selected positioning scheme satisfies the positioning condition corresponding to the positioning scheme, and if so, then performing a positional measurement according to the selected positioning scheme, and reporting a measurement result;

otherwise, selecting respective one of the positioning schemes sequentially in an order of descending priorities from high to low, and determining whether the selected positioning scheme satisfies the positioning condition corresponding to the positioning scheme until the selected positioning scheme satisfies the corresponding positioning scheme, and performing a positional measurement according to the finally selected positioning scheme, and reporting a measurement result.

8. The method according to claim 6, wherein if the assistance data comprises the priority and the positioning condition corresponding to respective one of the positioning schemes currently supported by the UE, then selecting, by the UE, one of the positioning schemes according to the assistance data comprises:

determining, by the UE, whether the lastly selected positioning scheme still satisfies the corresponding positioning condition;

if so, then still performing a positional measurement according to the lastly selected positioning scheme, reporting a measurement result, and determining whether there is a positioning scheme at a higher priority than the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, and if so, then performing a positional measurement according to the positioning scheme, and reporting a measurement result; and

if the lastly selected positioning scheme does not satisfy the corresponding positioning condition, and/or there is no positioning scheme at a higher priority than the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, then determining whether there is a positioning scheme at a lower priority than the priority of the lastly selected positioning scheme or at the same priority as the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, and if so, then performing a positional measurement according to the positioning scheme, and reporting a measurement result.

9. An apparatus for controlling a positioning scheme to be selected, the apparatus comprising:

a first processor, a first transceiver and a first memory;

wherein,

the first processor is configured to read a program stored in the first memory to perform the process of;

determining assistance data to instruct a User Equipment (UE) to select a positioning scheme according to a location service request; and

transmitting the assistance data to the UE through the first transceiver;

the first transceiver is configured to be controlled by the first processor to receive and transmit data;

the first memory is configured to store data for use by the first processor in operation.

10. The apparatus according to claim 9, wherein the assistance data comprises a priority and/or a positioning condition corresponding to respective one of positioning schemes currently supported by the UE;

wherein the priority is a priority at which the UE is instructed to select the respective positioning scheme, and the positioning condition is a respective positioning condition to be satisfied by the positioning scheme which the UE is instructed to select at the priority, wherein if the positioning condition is satisfied, then it will be determined that the positioning scheme is selected;

otherwise, another positioning scheme will be further selected at the priority thereof.

11. The apparatus according to claim 9, wherein the first processor is configured to read a program stored in the first memory to perform the process of:

determining the assistance data to instruct the UE to select one of the positioning schemes, according to a Quality of Service (QoS) parameter of the location service carried in the location service request, a current serving cell or positional information of the UE, and positioning capabilities of the UE and the network side.

12. The apparatus according to claim 9, wherein the first processor is configured to read a program stored in the first memory to perform the process of:

deciding to transmit the assistance data to the UE, according to an updated serving cell of the UE, and a previous result of positioning the UE upon reception of a location update message.

13. The apparatus according to claim 9, further comprising:

a second processor, a second transceiver and a second memory;

wherein,

the second processor is configured to read a program stored in the second memory to perform the process of;

receiving assistance data transmitted by the first transceiver to instruct the UE to select a positioning scheme, through the second transceiver;

selecting a positioning scheme according to the assistance data;

the second transceiver is configured to be controlled by the second processor to receive and transmit data;

the second memory is configured to store data for use by the second processor in operation.

14. The apparatus according to claim 13, wherein the assistance data comprises a priority and/or a positioning condition corresponding to respective one of positioning schemes currently supported by the UE;

wherein the priority is a priority at which the UE is instructed to select the respective positioning scheme, and the positioning condition is a respective positioning condition to be satisfied by the positioning scheme which the UE is instructed to select at the priority, wherein if the positioning condition is satisfied, then it will be determined that the positioning scheme is selected;

otherwise, another positioning scheme will be further selected at the priority thereof.

15. The apparatus according to claim 14, wherein if the assistance data comprises the priority and the positioning condition corresponding to respective one of the positioning schemes currently supported by the UE, then the second processor is configured to read program stored in the second memory to perform the process of:

selecting one of the positioning schemes in an order of descending priorities from high to low, and determining whether the selected positioning scheme satisfies the positioning condition corresponding to the positioning scheme, and if so, performing a positional measurement according to the selected positioning scheme, and reporting a measurement result;

otherwise, selecting respective one of the positioning schemes sequentially in an order of descending priorities from high to low, and determining whether the selected positioning scheme satisfies the positioning condition corresponding to the positioning scheme until the selected positioning scheme satisfies the corresponding positioning scheme, and performing a positional measurement according to the finally selected positioning scheme, and to report a measurement result.

16. The apparatus according to claim 14, wherein if the assistance data comprises the priority and the positioning condition corresponding to respective one of the positioning schemes currently supported by the UE, then the second processor is configured to read program stored in the second memory to perform the process of:

determining whether the lastly selected positioning scheme still satisfies the corresponding positioning condition;

if so, still performing a positional measurement according to the lastly selected positioning scheme, reporting a measurement result, and determining whether there is a positioning scheme at a higher priority than the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, and if so, performing a positional measurement according to the positioning scheme, and reporting a measurement result; and

if the lastly selected positioning scheme does not satisfy the corresponding positioning condition, and/or there is no positioning scheme at a higher priority than the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, determining whether there is a positioning scheme at a lower priority than the priority of the lastly selected positioning scheme or at the same priority as the priority of the lastly selected positioning scheme, and satisfying the corresponding positioning condition, and if so, performing a positional measurement according to the positioning scheme, and report a measurement result.