Method for Paging and Stopping Paging to an Idle MS and a Paging Apparatus

Abstract

A method for paging an idle MS includes: a PC sends a Paging Announce message to the BS, starts a timer and sets a paging count threshold; the BS pages the MS; if no paging response is received from the MS before expiry of the timer, the PC compares the number of times of paging with the set paging count threshold, and re-sends the Paging Announce message or cancels the paging operation, according to the comparison result. A method for stopping paging to an idle MS includes: a BS in a PG pages an MS, and a network side sends a paging stop message to at least one other BS; and at least one other BS stops the paging process. A paging includes a central processing unit for setting a paging count threshold and judging whether a paging response is received.

1 . A method for paging an idle Mobile Station (MS), comprising:
 sending a Paging Announce message to a Base Station (BS) in a Paging Group (PG) containing the MS, and starting a timer;   responding, by the BS, to the Paging Announce message, and paging the MS; and   stopping paging to the MS when no paging response is received from the MS upon expiry of the timer.   
     
     
         2 . The method of  claim 1 , wherein a paging count threshold is set; and the Paging Announce message is re-sent if the number of paging does not exceed the paging count threshold before the timer expires. 
     
     
         3 . The method of  claim 1 , wherein an anchor Paging Controller (PC) sends a Paging Announce message to the BS in the PG. 
     
     
         4 . The method of  claim 1 , wherein a relay PC sends the Paging Announce message to the BS in the PG according to the Paging Announce message of an anchor PC and the PG information of the MS. 
     
     
         5 . The method of  claim 4 , wherein the relay PC starts its timer and/or sets its paging count threshold when sending a Paging Announce message; and stops sending the Paging Announce message as soon as the timer expires and/or the number of times of paging exceeds the paging count threshold if no paging response is received from the MS. 
     
     
         6 . The method of  claim 4 , wherein the relay PC is the relay PC that performs the last location update of the MS, or a relay PC adjacent to the relay PC performing the last location update of the MS. 
     
     
         7 . The method of  claim 6 , wherein the BS sends a paging response to the anchor PC and/or the correlated relay PC upon paging the MS successfully before expiry of any timer. 
     
     
         8 . The method of  claim 7 , wherein the anchor PC and/or the correlated relay PC responds to the paging response and stops paging. 
     
     
         9 . The method of  claim 4 , further comprising:
 the BS sends a paging response or a message indicative of paging success to the anchor PC and/or a correlated relay PC, after the BS pages the MS successfully; and   the relay PC directly instructs a Paging Agent (PA) in the corresponding PG under the relay PC to stop paging, and instructs other correlated relay PCs to stop paging from the BS in the correlated relay PCs to the MS.   
     
     
         10 . The method of  claim 4 , wherein: the BS sends a paging response or a message indicative of paging success to the anchor PC directly or through a relay PC; and the anchor PC sends a paging stop notification to the BS or the relay PC directly or through a relay PC. 
     
     
         11 . The method of  claim 1 , wherein the Paging Announce message comprises the information indicating the BS stop paging at the air interface, and such information comprises time indication and/or count indication. 
     
     
         12 . An apparatus for paging an idle Mobile Station (MS), comprising at least a Paging Controller (PC), and a Paging Group (PG) consisting of at least one Base Station (BS), the PC further comprising a paging unit, a paging judgment unit, and a paging stop notification unit; wherein
 the paging unit is adapted to send a Paging Announce message to the BS in the PG that contains the MS;   the BS in the PG is adapted to respond to the Paging Announce message, and page the MS;   the paging judgment unit is adapted to judge whether a paging response is received from the MS within the predetermined time segment; and   the paging stop notification unit is adapted to instruct the paging unit and/or other PC to stop paging after the paging judgment unit determines that no paging response is received from the MS within the predetermined time segment.   
     
     
         13 . The apparatus of  claim 12 , wherein the PC is an anchor PC or a relay PC. 
     
     
         14 . The apparatus of  claim 13 , wherein: the PC further comprises a paging count setting unit which is adapted to set a paging count threshold; the paging judgment unit compares the paging count of the paging unit with the paging count threshold within the predetermined time segment, and instructs the paging stop unit to stop paging once the number of times of paging hits the threshold. 
     
     
         15 . A method for stopping paging to an idle Mobile Station (MS), comprising:
 sending, by a network side, a paging stop message to at least one other BS in the PG when any Base Station (BS) in a Paging Group (PG) pages the MS successfully;   responding to, by the at least one other BS, the paging stop message and stopping the paging process.   
     
     
         16 . The method of  claim 15 , wherein the network side is an anchor PC or a relay PC. 
     
     
         17 . The method of  claim 15 , wherein: after the BS pages the MS successfully, the BS sends a paging response or a message indicative of paging success to the anchor PC directly or through a relay PC; and the anchor PC sends a paging stop notification message to the BS or the relay PC directly or through a relay PC. 
     
     
         18 . The method of  claim 16 , wherein: after the relay PC knows that the BS pages the MS successfully, the relay PC directly instructs the PA in the corresponding PG under the relay PC to stop paging, and instructs other correlated relay PCs to stop paging from the BS in the correlated relay PCs to the MS.