Apparatus, and associated method, for paging a mobile station with page addresses upon a paging channel

• US 8,644,860 B2
• Filed: 01/11/2008
• Issued: 02/04/2014
• Est. Priority Date: 01/11/2008
• Status: Expired due to Fees

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Willey, William Daniel, Cai, Zhijun
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): OBAYANJU, OMONIYI
• Application Number:
  US12/013,331
• Publication Number:
  US 20090181701A1
• Time in Patent Office: 2,216 Days
• Field of Search: 455/51, 455/458, 455/432.2
• US Class Current: 455/458
• CPC Class Codes: H04W 68/025 Indirect paging
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

An apparatus and a method for facilitating paging of a mobile station in a multi-user communication system. A page message is generated that includes page addresses of mobile stations that are to be paged. The page addresses are shortened addresses, if possible, that are selected to unambiguously identify the paged mobile stations. The page message includes page addresses of corresponding lengths and of unequal values.

Claims

1. An apparatus for facilitating mobile-station paging, said apparatus comprising:

a page format selector provided with groups of bits of page addresses, said page format selector configured to identify a unique page address of a mobile station, select a first bit subset of the groups of bits of the page addresses to be included in a first page message and a second bit subset of the group of bits of the page addresses included in a second page message, determine a length of each group of bits of each page address provided thereto, determine which group of bits is of a shortest length, and shorten lengths of the group of bits to be all of common lengths, wherein the unique page address is formed from the first bit subset and the second bit subset;

a formatter configured to format the first page message and the second page message with portions selected by said page format selector of the groups of bits of the page addresses; and

a transceiver configured to transmit the first page message using a control channel and the second page message using a physical channel different from the first channel.

2. The apparatus of claim 1 wherein said page format selector is further configured to determine whether any of the group of bits are of equal values.

3. The apparatus of claim 2 wherein said page format selector is further configured to lengthen the group of bits to be of dissimilar values.

4. A method for facilitating mobile-station paging, said method comprising:

identifying a unique page address of a mobile station;

selecting a first bit subset of groups of bits of page addresses to be included in a first page message and a second bit subset of the group of bits of the page addresses included in a second page message including determining a length of each group of bits of each page address provided thereto, determining which group of bits is of a shortest length, and shortening lengths of the group of bits to be all of common lengths, wherein the unique page address is formed from the first bit subset and the second bit subset; and

formatting the first page message and the second page message with portions selected during said selecting; and

transmitting the first page message using a control channel and the second page message using a physical channel different from the first channel.

5. The method of claim 4 wherein said selecting further comprises determining whether any of the groups of bits, once shortened, are of equal values.

6. The method of claim 4 wherein said selecting further comprises selecting which groups of bits are to be included in the first and the second page message.

7. The method of claim 4 wherein said formatting further comprises including an address type field associated with each group of bits.