Communication device and communication method for wireless communications

Patent metadata

Field	Value
Publication number	US-2016242005-A1
Application number	US-201614988797-A
Country	US
Kind code	A1
Filing date	Jan 6, 2016
Priority date	Feb 15, 2015
Publication date	Aug 18, 2016
Grant date	—

Abstract

The present disclosure provides a communication device for wireless communication systems and a communication method for the communication device. The communication device includes: one or more processors, configured to determine information of a reference geographical location used for the communication device, and generate, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and a communication unit, configured to transmit the information of the relative geographical location to a predetermined communication object.

First claim

1 . A communication device for wireless communication systems, comprising:
one or more processors, configured to determine information of a reference geographical location used for the communication device; and generate, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and a communication unit, configured to transmit the information of the relative geographical location to a predetermined communication object.

2 . The communication device according to claim 1 , wherein, the communication unit is further configured to receive information of a geographical location of the predetermined communication object, wherein, the one or more processors are further configured to determine the geographical location of the predetermined communication object as the reference geographical location.

3 . The communication device according to claim 1 , wherein, the communication device transmits, at different time instants, the information of its relative geographical locations at respective time instants to the predetermined communication objects respectively, wherein, the one or more processors are configured to determine the absolute geographical location of the communication device at a first time instant as the reference geographical location at the current time instant.

4 . The communication device according to claim 1 , wherein, the communication unit is further configured to receive information of multiple absolute geographical locations serving as candidate reference geographical locations and corresponding identifiers, wherein, the one or more processors are configured to select, based on distances between the multiple absolute geographical locations and the communication device, one of the multiple absolute geographical locations as the reference geographical location.

5 . The communication device according to claim 1 , wherein, the communication unit is further configured to receive information of a geographical location of a relay node on a communication link between the communication device and the predetermined communication object, wherein, the one or more processors are further configured to determine the geographical location of the relay node as the reference geographical location.

6 . The communication device according to claim 1 , further comprising a positioning unit, configured to determine the absolute geographical location of the communication device.

7 . The communication device according to claim 1 , wherein, the one or more processors are further configured to calculate a difference value between the current absolute geographical location of the communication device and the reference geographical location, and quantize and encode the difference value to generate the information of the relative geographical location.

8 . The communication device according to claim 7 , further comprising a storage unit, configured to store one or more geographical location information quantization tables, and the one or more processors are further configured to quantize and encode the difference value based on a corresponding geographical location information quantization table.

9 . The communication device according to claim 8 , wherein, the storage unit stores multiple geographical location information quantization tables with different quantization granularities and/or sizes;
the one or more processors select a geographical location information quantization table with a particular quantization granularity and/or size to quantize and encode the difference value.

10 . The communication device according to claim 9 , wherein, the communication unit receives an indicator for indicating a geographical location information quantization table configured according to deploying environment of the reference geographical location,
the one or more processors quantize and encode the difference value between the absolute geographical location of the communication device and the reference geographical location by using the one of the multiple geographical location information quantization tables that corresponds to the indicator.

11 . A communication device for wireless communication systems, comprising:
a communication unit, configured to receive information of a first relative geographical location, which is about the first relative geographical location of a communication object of the communication device with respect to a reference geographical location; and one or more processors, configured to acquire, based on the information of the first relative geographical location and the information of the reference geographical location, a current geographical location of the communication object.

12 . The communication device according to claim 11 , wherein, the one or more processors are further configured to determine an absolute geographical location of the communication device as the reference geographical location and generate information of the reference geographical location, and the communication unit is configured to transmit the information of the reference geographical location to the communication object of the communication device.

13 . The communication device according to claim 11 , wherein, the communication device acquires, at different time instants, information of the absolute geographical location of the communication object at respective time instants respectively, wherein, the one or more processors are further configured to determine the absolute geographical location of the communication object at a first time instant as the reference geographical location at the current time instant, and acquire, based on the information of the first relative geographical location and the information of the reference geographical location at current time instant, a current absolute geographical location or a current relative geographical location of the communication object.

14 . The communication device according to claim 11 , wherein, the one or more processors are configured to calculate a sum of the first relative geographical location and the reference geographical location to acquire the information of the current absolute geographical location of the communication object.

15 . The communication device according to claim 11 , wherein, the communication unit transmits the information of the reference geographical location through at least one of broadcast channel signaling, downlink control channel signaling, connection management procedure RRC signaling mapped to downlink shared channel and control element information of media access layer.

16 . The communication device according to claim 11 , wherein, the communication device is a mobile node, and the communication unit is further configured to transmit, periodically or in an event-triggering manner, the information of the absolute geographical location of the communication device as the information of the reference geographical location.

17 . A communication method for a communication device for wireless communication systems, comprising:
determining information of a reference geographical location used for the communication device; generating, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and

Assignees

• Sony Corp

Inventors

• Chen Jinhui
• Wei Yuxin
• Sun Chen

Classifications

• H04W4/025 Primary

  using location based information parameters · CPC title

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• G01S5/0027

  of actual mobile position, i.e. position determined on mobile · CPC title

• G01S5/0205

  Details · CPC title