Automatic determination point for random access channel partitioning scheme
First Claim
1. Method for transmitting and receiving data in a code division multiple access telecommunication system, comprising the steps ofproviding a random access time window (1) comprising a plurality of random access slots for transmitting random access data from at least one first communication device (27, 28) to a second communication device (26), determining a partition defining a number of contention based random access slots and a number of reservation based random access slots in the random access time window on the basis of statistical information generated in the at least one first communication device (27, 28), and partitioning the plurality of random access time slots into a first and a second section (2, 3) on the basis of said partition, whereby the first section contains one or more of the plurality of random access time slots which are designated as contention based random access slots and the second section (3) contains the remainder of the plurality of random access time slots which are designated as reservation based random access slots;
- whereby the random access time window is partitioned in two dimensions, time and code.
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Accused Products
Abstract
The present invention relates to a method and to devices (26, 27) for transmitting and receiving data in a code division multiple access telecommunication system. A random access time window (1) is provided, which comprises a plurality of random access slots for transmitting random access data from at least one first communication device (27) to a second communication device (26). A partition point is determined, which defines a number of contention based random access slots and a number of reservation based random access slots in the random access time window on the basis of statistical information generated in at least one first communication device (27). The random access time window (1) is partitioned in a first and a second section on the basis of said partition point, whereby the first section contains contention based random access slots and the second section contains reservation based random access slots. The present invention thereby allows to dynamically adapt the random access time window resources to changing requirements and an optimal utilization of the resources.
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Citations
23 Claims
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1. Method for transmitting and receiving data in a code division multiple access telecommunication system, comprising the steps of
providing a random access time window (1) comprising a plurality of random access slots for transmitting random access data from at least one first communication device (27, 28) to a second communication device (26), determining a partition defining a number of contention based random access slots and a number of reservation based random access slots in the random access time window on the basis of statistical information generated in the at least one first communication device (27, 28), and partitioning the plurality of random access time slots into a first and a second section (2, 3) on the basis of said partition, whereby the first section contains one or more of the plurality of random access time slots which are designated as contention based random access slots and the second section (3) contains the remainder of the plurality of random access time slots which are designated as reservation based random access slots; -
whereby the random access time window is partitioned in two dimensions, time and code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
that said second communication device periodically broadcasts information about the partition of said random access time window to the at least one first communication device (27, 28).
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- 10. Device (27, 28) for transmitting and receiving data in a code division multiple access telecommunication system, in which a random access time window (1) comprising a plurality of random access slots for transmitting random access data is provided, the plurality of random access slots being partitioned in a first and second section (2, 3), whereby the first section (2) contains one or more of the plurality of random access slots which are designated as contention based random access slots and the second section (3) contains the remainder of the random access slots which are designated as reservation based random access slots, with means (34) for randomly choosing a random access slot from said first section, means (33) for transmitting random access data in said chosen random access slot, and means (41) for generating statistical information on contention based random access attempts, whereby the random access time window is partitioned in two dimensions, time and code.
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15. Device (26) for transmitting and receiving data in a code division multiple access telecommunication system, in which a random access time window (1) comprising a plurality of random access slots for transmitting random access data is provided, with
means (42) for determining a partition defining a number of contention based random access slots and a number of reservation based random access slots in the random access time window on the basis of received statistical information, means (38) for partitioning the plurality of random access slots in a first and second section (2, 3) on the basis of said partition, whereby the first section (2) contains one or more of the plurality of random access slots which are designated as contention based random access slots and the second section (3) contains the remainder of the plurality of random access time slots which are designated as reservation based random access slots, and means (37) for broadcasting information about the partition of said random access time window (1); whereby the random access time window is partitioned in two dimensions, time and code. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
Specification